Aaron Electronic Sales

6636-40 CHARLEVOIX DETROIT 7t MICHIGAN W3AQT's decision, 4< 1 will not spend any more money for your magazine ' struck mc as being an interesting attitude. Since October 1960 I've been buying several copies of each issue in addition to my subscription copy line copy, the one with no wrinkles, goes into the historical hie. The others are handled and passed around. The competition One copy per each. . + how come you are making obeisance to CQ and K6BX by including Greene County on your QSL Is...

An Exciting New Kc

m * ' i t t t i i * , - - - it. . . t i , t ( * - - * . r I 1 4 ' t I-l > > , > - I I p p i ft * t , III I< > < ) Butter 1, Missouri Ph. ORch rd 9-3127 11240 West Olympic Blvd. Los Angefea 64-_Ph. GRanlte 7-6701 931 No. Euclid Ave., Anaheim, CalJf. A B& W fow pass filter installed in the coaxial lead of your transmitter will stop the radiation of spurious and harmonic signals which interfere with TV reception. These two fitters are usable through the frequency range of 30 to 54...

And Transceivers

Bandpass Filter Receiver 10-15 Meter Transceiver 2-6 Meter Siamese Converters Deluxe Mobile Transceiver DX Communications Receiver All above units are modern in design, and free of TVI producing problems. 'Order from your fanonle Electronic parts distributor, he cannot supplyt send u* his name and your remittance, and ut> will supply. Dealers Efeclronic distributors, order Jrom us Bookstores libraries, newsdealers order from Baker & Taylor, Hiflside. N, J. Eiporl (eic, Canada), order from...

Antennas In

6 & 2 Meter Model No, A-6Z Amateur Net A 62 33 00 Stacking Kit AS 82 2.19 Match any 50-75 ohm, G or 2 meter transmitter outmit to efficient balanced TeedUne in the 300-450 ohru range., Krni matching problems Get maximum power transfer to f edilne Match any 50-75 ohm, G or 2 meter transmitter outmit to efficient balanced TeedUne in the 300-450 ohru range., Krni matching problems Get maximum power transfer to f edilne Bandswlichlilg fy and 2 meter operation w buIJt Jn VHF type SWH bridge,...

B

Dust-proof, dirt-proof, kick-proof, spray-proof deep-drawn steel housing, Id cot for under-hood mounting But attractive far visible mounting QUIET enough to mount by your earH Uses rugged new transistors, Rotings conservative* Impossible to damage by short circu+t. All cables included S-ft, red cable to battery, 5-ft. cable to transceiver, 18 cable for ground, 3802 HOUSTON ST., SAN DIEGO 10, CALIF. CYPRESS 7-4815 on each one. The same precautions should be exercised in removing these capacitors...

Bf Electronics

L Removing the cathode by-pass condenser reduces gain to approximately one-half. 2, Removing the screen by-pass condenser reduces gain to approximately one-tenth, and in some cases causes instability. When you calculate the power dissipated in a resistor by the power formula, double this value when you pick the resistor, 4, Cathode by-pass condenser's impedance at the lowest frequency you want to pass is usually one-tenth the resistance of the cathode resistor. x Increasing size uf coupling...

Bristol Pennsylvania

4 RPM motor is used each revolution would advance the counter one number which would represent only a quarter of a minute. To obtain the true elapsed time in minutes the total counter number would have to be divided by four In the ease of a 6 RPM motor, the total counter number would have to be divided by six. As the counter ordinarily available will return to zero when its highest number is reached it is best to use one with at least four digits displayed in its window in order to avoid going...

Bu

Jim Kyle K5JKX 1236 N.E. 44th Oklahoma City 11, Okla. the true sheet-beam tube, and the long-tailed pair phase inverter from the hi-fi realm. Note the 10K cathode resistor which must not be bypassed. This provides the phase inversion which allows the circuit to act in sheet-beam fashion. At first we were a bit dubious about this, but none of our fears proved justified in practice. For those of you who may be curious about the 613U8, it is just a normal pentode except ior one thing it has a pair...

Calibratedoutput Signal Generators

Gen, Radio's 750.00 J 700-A Wido Band BFO puts out 50 cy to 5 mc in 2 hands Beo.iton's 420.00 + 203B heats your VHF generator at 70 mc. Get ,1 to 25 mc Navy LP-5 covers 9' a kc to 50 mc fin S bands, ultra stable output to r.O v Navy LX 2 covers 7Y* to 330 mc. Metal case for Meas. Corp. MudeT 80 2 to 400 me. Is in their catalog today at a lot more than Daven's AN version of the Mod. BO uses more modern tubes, same range Hewlett-Packard ir608-B is 10 to 400 mc w lowest residual fm, .1 uv to _B v...

Choice Bargains In Commun Receivers

BC453B 190-550 kc G-tube superset w 85 ke IF'i ideal as longwave revr, as tunable J F & as 2nd convert, W atl data. CHECKED ELECTRICALLY Grtd. OKI II lbs, 19 95 fob Los Angeles R-45 ARR-7 w ae sply. 0,55*43 mc xtl filter, etc, 179.50 cash or Time Pay Sf7.95 down. RBS Navy's pride -20 mc t4-tube superhct has volte filter for low noise, enr-saving AGC. high sens. select. IF is f255 kc. Checked, aligned, w pwr sply cords, tech data, 89,50 ready to u*er foil Charleston, S, C. or Los Angeles. Low...

Cw

If calculations are not for you, the next best thing is an idea of what to do to avoid the LUF and its effects. This is simple in one sense difficult in another. You can raise your power use a California Kilowatt. Fine approach except it's illegal and it won't solve the problem. Its perfectly true higher power will push the LUF down. The problem is how much power Doubling your power gives only a 3 db increase in field strength, Translated to frequency this may be only a few hundred kilocycles...

D

A0JT4I uses j tuned rf circuit with 6BAG A compact package delivering a ptate input of 50 watH for CW operation on 80 or 40 meters. 123Y7 crystal oscillator GOQG power amplifier. Pi-network final When used with AOR-43 receiver, transmitter operates from receiver power suppfy, Meter and TR switch. A0JT4I uses j tuned rf circuit with 6BAG

Dkcc

DK60-G SPDT rJ. switch with special isolation connector in dmerjitized position, S 1 1.70 SPDT r.r switch with DPDT auxiliary contacts. 14,35 SPDT rj, switch with DPDT auxiliary contacts und special isohiliair' enniicctor in tit-energized position. SJ5.G5 if Relays available in weatherproo bo es for exterior installation. Ganged, multiple position switch arrangement available for remote control selection of antennas. ic Unconditional guarantee for period of one year, (We will repair if faulty...

Dow Radio

1759 E, Colorado Blvd.- PASADENA---Mu 1-6683 222 West Main St.----SANTA MARIA-----WA 2-1765 5857 Hollister Ave GOLETA WO 7-3401 1505 S* Oxnard Blvd.------OXNAFD----HU 6-6353 100 MODUIATION-WITHOUT DISTORTION i* procticolty impossible to oirain wirh most bam rigs. NOW Thanks to P& H you con have your cake and eat it tool Simply connect a P& H MODEL AFC-l or AFC2 between the mike and the mike input of any SSB, D5B, AM, PM or FM Transmitter Set the transmitter audio gain control for 100...

Dx Transmitter

90-watts phone or CW on 80 through 10 meters * Neutralized 6146 final amplifier Built-in low pass filter * Operates at reduced power for novice operation An exceptionally fine transmitter for the novice Provides CW operation at ihe novice power limit and AM operation later as a general class license holder. Clean, rugged construction, high quality components, and easy to follow instructions make assembly an easy, fun-filled task, Controlfed-carrier modulator and pouer supply are built-in....

Electronics

JP ** 424 Columbia Lafoyette, Ind NOTE Due to a printer's error, the price of this unit is shown incorrectly in the June issue. fundamental signal J icr handbook says that harmonics can be greatly reduced by means of an inductively coupled circuit in the transmission line and continues at great length to discuss the advantages of antenna couplers. In reading the handbook discussion we find that a coupler, in addition to its ability to attenuate harmonics, provides a dandy means of matching the...

Equipment

POWER CAPABILITY IS 350 WATTS - MOST POWERFUL CONVERTER IN ITS CLASS PROVEN PERFORMANCE AND SATISFACTION GUARANTEED QUALITY COMPONENTS & EXCELLENT WORKMAN- CONSERVATIVE MECHANICAL & ELECTRICAL DESIGN IN ALL LINEAR SYSTEMS POWER SUPPLIES ASSURES RELIABLE OPERATION UNDER ALL CONDITIONS - RUGGED - CAN OUTLAST AND OUTPERFORM OTHER BRANDS UNDER ADVERSE CONDITIONS 125 f.-jj-j-iyp'- -77. -77, -,'ivivi v.T. i . . . Jtv-i , , ,

Equipment And Collins

51J2, 51J3, R-390A URR Receivers ( .50-30.5 MC). Teletype Printers 14, 15. 19, 20, 26, 28. Kletnschmidt Printers TT-4A, TT-76, TT-98. Telewriter Frequency Shift Converter. Boehmc Keyers for CW. For general information & equipment list, write ALLTRONICS HOWARD CO., Box 19, Boston 1, Mass, Richmond 2-004 . ffcCI c Samples 25c (refundable) Wildcat Press, 6707 WaiS Beck Ave,, North Hollywood, Calif. Reduces interference and Noise on Alt Makos Short Wave Receivers. Make World Wide Reception...

Fig

I had a 250mmfd 2KV variable lying around the shack and it was pressed into sen ice. My object was to keep cost at a minimum and to use material that was on hand where possible. This part was one manifestation of the many bits of equipment bouglit on various trips to Cortlandt Street, however, it is not unique in nature and others can be easily substituted. The amateur must remain flexible if cost consideration is a prime factor. The gamma matchbox can be made in the...

Figure

Fig. 4 Mike preamp, reactance modulator, AFC low-pass filter, and self-excited oscillator circuitry. Tube is a 6EA8, Stage grounding should be as shown. NE-2 regulates reactance-modulator bias voltage, LI-CI and L5-C2 both resonate at 1 6 desired output frequency L2 is 3-turn link at cold end of LI L3 and L4 are one-turn o mm ended to allow easy initial tune-up- Choice of the Armstrong oscillator was made on the basis of adaptability to commercially available coils a Hartley or Colpitis is...

Free Catalog

Fully illustrates over 250 different Heathkit* it money-saving do it-your-self prices. Choose from a complete fine of ''mobile** or 44fi*ed station amateur gear and accessories at savings of 50 or morel Specially designed for CW work Efficient circuitry provides 50-watl plate power input for outstanding amateur communications. Covers 80 through 10 meters. Features built-in low pass filter, neutralized final amplifier, switched antenna re ay power, pi-network output coupling and panel meter....

Frequencymeter Bargains

Navy, LM., .125-20 mc w matching book, xtl, 7 Rfl schematic, instruc., ptuo, 100 grtd tv'-vw AC Pwr for LW Modify now EAO, w sillcon Q Qfi diodes, instructions we furnish _______ t -vm OK LM w readable but ragged caljb. book S42.50 OK LM w itl but no calibration book ________ 27,50 TS-173 ( 90-450 me), TS-I74 (20 280 mc) or tlRflflri TS-175 (85-1300 mc), each JIUU.UU TS-IH6, 0,1-10 KMC, .01 . xtl ealib 5195.00 General Radio Co. 020A, 10-3000 mc, extl < 1QQ Rfl calib., .01 accur, Regular...

From Pilot Lamp

Note L approximately 19 turns 26 enamel wire on VV dia. variable iron core coil form, nected to the triode section of the original 6CX8 tube - which acted as a doubler stage.)* Note the coil data given in Fig, 4 is for the modified doubler stage of Fig. 7, Naturally I wanted front panel controls instead of the screwdriver adjust type ones mounted on the chassis. This was my downfall. If I only had known the trials and tribulations that lay ahead, as the old refrain goes. I cleverly calculated...

Ftc

Hickory Midland, Texas Are you having trouble finding a suitable filament transformer at what you may consider a reasonable figure for that new final if amplifier you are building Offered here is a method of exchanging your time and effort for such a transformer at a verv modest cosL The problem can be resolved in three parts L Determine the wattage requirements for the filament or filaments of the tubes to be used in the amplifier, 2, Find a transformer capable of...

Full Legal Input

When 02 is adjusted for optimum xmtr ant coupling, it also provides optimum ant coupling for the (02A tuned input. The ultra high Q tuned circuit (C2-L2X3) actually absorbs signal voltage from the resonant transmitter tank circuit, rather than vita versa, which increases the signal strength and provides an astounding improvement in signal to noise ra+IO A semiconductor switching unit SCR onens the circuit at the ant feed line, eliminating any effect on xmtr performance. Thure is no signal...

Get All Of That Signal Out With Lowloss Foam Coax Cable

RG58U .,,50 ft 2.49_____100 ft 3,99 RG8U 50 ft 4.95 100 ft & .99 EACH 1.99 SALE 4.99 EACH L49 EACH 0.99 TUNABLE GENERATOR SUPPRESSOR (6 or more 1.49 ea) . 60 WATT P. P. OUTPUT TRANSFORMER (Reg. 15*00) matches 6L6's etc P0WEH TRANSFORMER Pri I10V, Sec I35V 35MA, 6.3V 1A PLATE TRANSFORMER Pri 110Vr Sec 2000V .005A ASTATIC 333 CERAMIC MICROPHONE (Reg. 11.00) SALE 3.99 TURNER FAMOUS 350C MICROPHONE REMINGTON RAND C0MPUT0R CHASSIS (loads of resistors, diodes, xformers etc,) ONLY 1,19 OSCILLATOR...

Haars Control Console

The Mars Control Console contains in one unit a Kilowatt SWR Bridge measuring both 52 or 75 ohms Hybrid phone patclv Internal speaker with provision to switch to external speaker if desired, plus several switches for control of xmttr, receiver, etc. as desired. All this at an amazing low price, The Mars Control Console contains in one unit a Kilowatt SWR Bridge measuring both 52 or 75 ohms Hybrid phone patclv Internal speaker with provision to switch to external speaker if desired, plus several...

Hayward St

Economical Mobile Transceiver Construction LOOKING SHOPPING TRADING TRYING TO SAVE MONEY Write Bob Grahani for Special Deals on Mew and Reconditioned used gear. Cash or Budget. Dept. C.T Reading, Mass. Tel 944 000 Traps for dipoles , . , high strength * , , moisture proof guaranteed to handle a full KW. Model KW-40 coils wiH, with o TOS foot antenn , provide operation on 10-15-20-40-80. 12.50 set. For information on other models write FRED L. REYNOLDS W2V , 492 Ravenswood Ave,, Michael Watson...

Hr Receiver

Covers 80 through 10 meters * Tunes SSB, AM & CW signals * Prebuilt, prealigned tuning assembly RF stage tor extra sensitivity Lattice-type crystal filter for high selectivity An ideal novice receiver Easy to build with preassembled, aligned tuning unit, and precut, cabled wiring harness Versatile controls, large slide-rule dial, built-in S meter Tor easy tuning, built-in BFQ for SSB & CW reception and a host of other high performance features to delight any amateur radio fan Features...

Smi

The gamma rod, rninibox container, motor, feed-thru insulator and aluminum cross. sulator to the standard gamma matching rod, This particular type system was chosen since its unbalanced characteristics are particularly well suited to the coax type coupling arrangement. he shield of the 50 ohm cable is grounded to the rninibox via the S0239 connector which is affixed to the rninibox. This is in turn mounted to the exact center of the middle (driven) element. Needless lo say, the series capacitor...

Info

455 KCf J,F+ sub-miniature transformer 2 51.00 455 KC. Dual T.F. miniature transformer ,60 ea Parts for 2 Watt Audio Power amplifier ooniirtln ot 3 transistors, including 1 power transistor, resistors, electrolytic capacitors, together with schematic. Can be butlt in a 2 i 2* box S3 00 Parts for 12 volt, 1 amp. REGULATED power supply, with schematic and instructions 8,95 Code Oscillator module completely assembled, match book size with schematic, etc. 1.00 P. A. Amplifier Module completely...

INPUT

G PLATE TRANSFORM Eft FuNy enclosed - 60 Cy. Sec. 800V CT - 250MA ------ Tri 115V - fiO Cy. Sec. 8V - 2A IF TRANSFORMERS 45> KC DUoriminator 13 l(T 3f 13 1 ti* x 2* lone .5 MC IF lTM *t. 13 1 rr s 13 10* s 2 m o.7 MG IF tranaf. 13 16* x 13 li s 2' LOW FREQUENCY CRYSTALS IN HERMETICALLY SEALED HC-6 U HOLDERS. CRYSTALS SELL AT 1.05 EACH POSTPAID USA. Please include 2nd choice. Frequency listed in kilocycles. 131,) 04 226.000 236*000 244.000 252.000 200.000 28S.OOO 276.000 284.000 292,000 300.00...

Jl

Means or the space to erect a separate wire for each frequency that he wants to operate on. Consequently, most of his operating is done on one antenna, It might load up nicely and put out good strong signals on any one of several frequency bands, but not being designed for one single frequency, it will have a tendency to emit signals on a frequency of double, triple, and more, of the fundamental frequency. When this happens your incoming cards take on a drab appearance and do not have the...

Fvu

Many of us, in our affiliations with radio clubs nets, or MARS find it necessary at times to address mail to certain addresses fairly regularly, A great deal of time that could otherwise be used for operating on the air or ior experimenting at the bench is taken by the chore of addressing this mail. Unless you are an ardent secretary (or have one at your command) you would probably be glad to turn your address-o-graph duties to someone else. Rut alas There is an easv wav to do the job. This...

Khyy

Halfrcrafters S-40B WRL GLOBE SCOUT 65-B Ranger I excellent condition GJobe Chief w streen mod. NQ-140 w *tal cal, ., 5 59.00 , 45,00 179.00 19.00 . 39.00 . 159,00 H. Valentine Barnes KT APA Redline Company Jaffery, N. H, If you have any ham gear circa the mid or early thirties please make arrangements so it won't be junked when you leave us. We'd sure like to have it for display in the

Kvdc Output Regulated Power Supply

115 volt 60 cycle input 25.00 Good for up to 5 ma current, DC POWER SUPPLY KIT 4 amps 6-12-24-28 volts DC output, includes transformer, capacitor, choke, full wave silicon bridge mounted on copper heat sink. HEAT SINK, ALUMINUM, DOUBLE FIN. With 150 watt transistor 2N277 1.5x4.8 inches 51,50 3.5x4.8 inches J2.50

Kvnt

1 recently became the possessor of a high impedance, low output, dynamic microphone. The output of the microphone is TOdb below 1 volt microbar. Because of this low output, au amplifier was needed to provide a Usable voltage level. My main consideration was space. Printed circuit construction appealed to be the best method, but in order to reap all the benefits of printed circuits, resistors and capacitors must have leads from one end only. Not having the materials to make a printed circuit nor...

Laboratories

J TELEPHONE 627-6800 Clegg Laboratories, well known for high-performance VIIF equipment the Zeus transmitter. Interceptor receiver, Thor 6 and 99er 6 meter transceivers has recently become a division of Squires-Sanders, Inc, Amateurs interested in VHF will find that this means a vastly better Clegg as the result of excellent technical support and financial backing, plus association with a company whose entire interests center upon superior amateur communications equipment....

Learn Radio Code

No Boohs To Read No Visual Gimmicks To Distract You, Just listen and learn Based on modern psychological techniques This course will take you beyond 13 w.p,m* In LESS THAN fa THE TIME Available also on magnetic tape See Your Dealer Sow Album Contains Three 12 LP's 2 Va Hr. Instruction Now, learn code and something else at the same time. Fascinating story and code practice at same time. 2.49 We have spared you no expense to provide you with the absolute ultimate in VHF converters, We have spared...

Light Weight

Gonset has scored a breakthrough with the new Sidewinder a 2 meter SSB, AM and CW transceiver that combines technical excellence with contemporary design and compact, sturdy construction. The Gonset Sidewinder provides coverage of the entire 2 meter band in four segments 1 Mc wide. It has built-in VFO and the receiver is completely transistorized, There are a total of 21 transistors, 6 diodes and three tubes in the Sidewinder which operates on either SSB, AM or CW. The power supply is designed...

Madt Hi Freq Transistors

All guaranteed, factory marked, exlnt for converters, CB transmitters, 6 meters, etc. Factory closeout bargain. 5 1 -00 One of the Navy's finest. 4 ranges .5-5-50* 500 MR HR Detects Beta & Gamma. Detachable probe on coil cord. Complete ready to use with headphones (not shown) and shouU der strap. With Fresh batteries. Just in time for Summer prospecting. NPN, Exlnt for transmitters. 2N1897 1.00 each

Maximum Talk Power

Some counters operate with a reciprocating action while others operate with a rotary action. In use, the bench light or a drop light under which the equipment is to be constructed is plugged into the outlet receptacle on the Minute Motor and left there for the duration of the construction period. At the start of each work session the cord of the Minute Motor is plugged into the 115 vac source. During the time the cord of the Minute Motor is plugged into the U5 vac source the bench light will be...

Meter Converter With Nu Vistor Preamp

Unbeatable performance ai an unbeatable price, Only 10 00 ppd l Complete with 6USA, 6CW4 tube* and chotec of 36 me. erystal for 14-IS mc, output or 49,4 mc. crystal for broadcast iiijul output, Fully assembled, tested and guaranteed* SenslUritS J microvoit. Nrilse Miitire 2.H db, VANGUARD ELECTRONIC LABS D nt. H-10 (90-43 S9lh Ave, Mollis 23, N. Y, (Ponadaptors from page 99) This circuit is most useful to receivers employing dual or triple conversion and it is recommended tliat the first if...

Model

At long Iast, a new VHF transmitter that incorporates oil these long needed features 60 watts input on 6 AND 2 high level plate modulation full metering of ail circuits, including RF output VFO and antenna relay controls buift in buiJt in dummy load four internal crystal sockets and one socket located on the front panel for easy access. This unit utilizes a high efficiency final, the 8150 compactron, which is designed for full rated operation to 175 Mc. The dimensions are 14 wide, 8 high, and...

Motorola Fhtrid

This unit has a 60 watt transmuter using 820B in final. Vibrator f S. for receiver anh Dy m motor for Trans milter, Shipping Wtg, hQ lbs Catalog irlll, 30-50MC-6V Prie 44.50 15* Case for above, Catalog 9 Price S 2.50 ROD and HOD uniU have chassis cutouts for adding 2nd frequency oscillator deck to transmitter. All equipment is offered to licensed radio amateurs only. Quantities are limited to two items to a customer. Each unit unless otherwise noted is a complete receiver, transmitter and power...

N

A PRE-ENGINEERED HAM EQUIPMENT CENTER WITH BUILT-IN POWER & O COMMUNICATION FACILITIES Bring the ham center up out of the ceffar let the whole family share in the fascinating world opened up by global communications. The handsome styling of this functional unit fiti well in any decor neatly organizes equipment and cables. 1. UNIQUE power channel safely encloses-all interconnecting wiring relays, etc. Eliminates rat's-nest behind equipment. Room for built-in power supply, fitter network, etc....

Nc

Shown here is Pete K9AIF, in charge of our shipping room. Pete has an NCX-3 in his car, and her is what he has to say about it Ml think the NCX-3 is the bast buy for the money in its price class, A lot of people must aflrc with me. because i (hip more NCX*3's a week than i do all ether transceivers combined. Seo you on 80, 40, or 20 meters,1'

New Dkb Transfer Switch

Designed to meet switching needs when using transceiver as exciter to drive any linear amplifier. Performs necessary switching to either transmit directly with transceiver or to transmit with transceiver amplifier combination. SPECIFICATIONS Freq, range 0 to 500 mc, io I tw VSWR ) J 5 1 Isolation 30 db at 500 mc, 50 db at 30 mc Insertion loss 0.03 db at 30 mc Available in all std, AC And DC voltages- Connectors UHF std*t type Nt BNC, TNC and C available, DK2-60 or DK2-60B, UHF Connectors , .SI...

New Edition

IF YOU HAVEN'T RECEIVED A COPV OF OUR BIG NEW < 963 FALL WINTER CATALOG, WRITE FOR YOUR COPY Tuning- fork resonator, Philamon, for use in vacuum-tube oscillator circuit to produce an accurate calibration frequency of 400 cycles per second. Enclosed in sealed case, approx. I X 2 X 3 Removed from equipment, checked, in excellent condition. With schematic for oscillator using 12AX7 tube. Shpng. Wt- 2 lbs- 4.73 each. Excellent Values From our Used Ham Gear Department loading, very good condx...

Oalbk

Essential OTH information for all radio amateurs and SWL's. Each quarterly issue of the CALLBOOK is completely revised to bring you the most up-to-date information on QTH's. Great Circle Bearings International Q Signals Great Circle Charts World Time Chart Prefixes by Countries International Postal Information DX Log. Plus other features _ on each r u nr K 42 , SriQWb nn

Or Call

The overtone xtal oscillator circuit was next, I preferred to use 8 mc rocks instead of the more expensive overtone variety. The pilot light that was removed when the plate current meter was installed used a 47 lamp. The 47 lamp draws ,15 amps and is part of the series-parallel heater circuit (Fig. 3). In order to keep the heater circuits balanced, I used a 6AK6, which draws .15 amps of heater current, for the 8 mc oscillator tube. The oscillator stage (Fig. 4 was built on a small piece ol...

Other Bulletins And Books

Monthly VHF magazine, editor Jim Kyle K5JKX, technical articles and latest VHF news from all over the country. S2.00 per year. ATV Bulletin. Semi-monthly bulletin for the ham TV enthusiasts. Technical and operating news. 1.00 per year. 5 7 9. Monthly bulletin for those interested in contests. Lists all contests being held, gives rules and results on contests not covered in QST or CQ. 2.00 per year. 73 News. Published monthly, editor VE3DQX. Keeps you up-to-date on current ham events. In...

Panel

Site of h 'es d turmin d by through - oa fl- f Suiaton Site of h 'es d turmin d by through - oa fl- f Suiaton PLAN OF 5*x9 1 2* CHASSIS FIGURE 3 with almost any of the popular antennas, in-eluding the all-band type. The use of a coupler will go a long way toward providing more efficient operation and greater peace of mind For a down to earth discussion on wire antennas, feeders and couplers, the reader is referred to the excellent articles by Richard M. Smith W1FTX which appeared in the July...

Phone

By now almost everybody should be aware that a product detector of some sort is essential for best copy of either CW or sideband signals, to eliminate (or at least reduce drastically) detector distortion and to allow strong signals as well as weak ones to be received. A host of product-detector circuits are in print some time ago, we summarized most ol them in these pages and few new ones have appeared since. At that time, we came to the con elusion that the sheet-beam type of detector had much...

Popularly Priced

TOP LOADED DESIGN-Delivers superior performance* PRECISION ADJUSTMENT TO EXACT FREQUENCY-Easily made on telescoping tip of Topper Capsule NOISELESS QUICK-DISCONNECT-For changing bands in seconds - convenient for low garaging (No tools required) POWER HANDLING OF 100 Watts AM 300 Watts PEP SLEEK, SUM PROFILE -Reduces wind resistance at high speeds for greater frequency stabilization WEATHERABILITY-Loading coil is totally encapsulated in durable Fiberglas Topper Capsule VERSATILITY - 5 ft Topper...

Press

The Technical Materiel Corporation is proud to join the Press Wireless transmitting family at its overseas facility in Centereach, Long island. Press Wireless, famous for providing overseas com- M IVES INTO rnunications services for over 25 years, has recently installed the TMC GPT-10K Sideband Transmitter, as shown in the above illustration. for compieie details of the GPT-10K Transmitter request Technical Bulletin 1008.

R K W

Xote C9 and RS iti the schematic liavc been eliminated. to set their converter to the proper portion oi the band, proceed with the simplest of all methods the grid dipper. First, dip all your coils in the rf section to the proper frequencies, LI through L5 are dipped at 144 mc, L6 is dipped to the crystal frequency oi 31.333 mc and L7 is dipped to the third harmonic of this frequency, making if resonant at mc. These coils can be dipped and pruned before completion, but with the tubes in place...

Radio operators

The Heath Company takes pleasure in introducing on the following pages, the first of a complete series of fully integrated SSB amateur radio equipment that will set new standards for value, quality, style, and performance. To be designated the Heathkit SB Series, these products represent a major step forward in amateur radio SSB equipment. Now, the best in SSB design features are combined with Heathkit's leadership in electronic kit techniques to bring maximum performance and operating...

Receivers

BC639 VHP 3 00 to 156 MC with R 42 . 99.50 BC348 1.5 to 13 MC with Squelch Adapter . . 99.50 SX 11.0 H allierai t r 550 KC to 40 MC 99,50 NCI09 National 550 KC to 40 MC 99.50 BCf)24 (SCR522) 100 to 156 MC (Less ml.es) 5.95 R2S ARC5 100 to 156 MC 19-95 R77 ARC3 100 to 156 MC .19.95 R25 AHC5 3 500 to 3000 KC . . 24.95 ARU 190 to 9000 KC w Accessories _ 49.50 BC1206 200 to 4D0 KC (.Less luhes) 1.95 R4 ARR2 234 to 253 MC . 4.95 Surprise Package 2Q Misc. Parts 2.50 Send self addressed envelope for...

S

Extended height 54' Coliop*ed height 20-IT Hot dip galvanized after fabrication also ovarEabJe at ilighiFy increased price* (Based on a sfx foof rnoit above the tower, with the center of the antenna ot the top of the most i.e. AO feet above ground.) (Based on a sfx foof rnoit above the tower, with the center of the antenna ot the top of the most i.e. AO feet above ground.)

San Rafael Calif

6233 transformer, the -17.25 me trap can be utilized by shunting it with a 50 mmfd capacitor (o trap out the third overtone crystal frequency of the conv erter oscillator from feeding through and giving false beats. In the unit shown, a cut-out of x 3 was made to accommodate the power supply module. Although such construction is ideal if you have the extra time, it is not essential to performance oi this unit. The power supply can be built on (lie rear part of the chassis plate with or without...

Si

To give its full title, it is the Steerable Paraboloid Altazi-mith Radio Reflector. What the British omers wanted when they designed the Jodrell Bank dish was a large reflecting dish which could be pointed anywhere in the sky, with a mast sticking out from the middle to carry the antennas at the focus of the dish, So that they could change antennas quickly, the whole dish must be turned upside down. The 800 ton Jodrell Bank telescope has to keep its parabolic...

Sms

AMATEUR CITIZENS BAND COMMERCIAL RADIO EQUIPMENT LAC-1 Type 63 connectors, 1 male, 1 female for direct to equipment installation. 3.95 Net LAC-2 Type 83 connectors 2 female for insertion in cable. 4,45 Net LAC-2N Type N connectors 2 female for commercial installations, inserts in cable im desl& n ing- a NEW concept in mobile MY CALCULATIONS ARE & 4UY SOPHISTICATED RE5ULTING IN AN ULTRA-HIGH OA N, RADIATION- CONSIDER. IT'S MY FIRST METAL SCULPTURE Only 34. 50 and f f Write today for 54, 95...

Special Special Special

Radio Handbook. t5Hi Edition, written by Bill Orr W65AI, over 800 pages. Covers every phase of amateur radio from the very bastes right up through the construction of just about everything you could want in ham gear. Originally published at 8.50. Superceded by the new 16th edition which is the same except for new construction projects and selling tor 9.50 (see number 11). Special, until the last fev, copies are gone, only 5-95 80 SURPLUS RADIO CONVERSION MANUAL VOLUME NO, 1 (second edition L...

Summer Specials From Space

Mtr 125kc to 20mc s 70.00 TS-174 U Freq. Mtr 20mc to 250mc s 150.00 TS-323 UR Freq. Mtr 20mc to 450mc s 195,00 TS-175A U Freq, Mtr 85mc to lOOOmc s 135.00 AN'URM 79 Freq, mtr. 125kc-20mc brand new 950.00 AN URM-250 Sig. Gen, lOkc to 50mc . . S395 00 TS-588A U Sig, Gen. 5kc to 50mc s 390.00 TS-418 U Sig. Gen* 400mc to Ikmc 325.00 TS-419 U Sig* Gen, 900mc to 2100mc s 475.00 TS'1550 U S g. Gen, 2700mc to 3400mc s 135.00 Ferris Mod 18c Microvolter 5 to 175mc s . 55,00 Gen, Radio 12088...

Telrex Rowrndigator System Model Tsris

* SELF LOCKING 0Y STURDY WORM GEARS * AZfMUTH INDICATION BY SELSVNS * designed foh ao.o masting * MALLEABLE CAST MASTING CLAMP SUPPLIED * OUTPUT SPEED AFPRDX i ftPM WILL FIT INTO OR ONTO A 51 DEO TOWER VRrTE FOR FREE fv77 DESCHlBLMG THC WORLDS MOST POPULAR ANTENNAS Tie big trip to Europe will be leaving Idle-wild October 6th at 10 PM. Well all be gathering in the BOAC departure rooms at about 8 PM and checking it. Sorry if yon didn't take us up on this one, were going to have a lot of fun. Well...

Transceiver

Jim Kyle K5JKX 1236 44th Street Oklahoma City 11, Okla. For quite some time now I have been bandying about idea articles in these pages so we might as well warn you at the outset that this is another of them. The gadget hasn't yet been built, but on paper offers a relatively simple way for anyone interested in wideband FM work (there's a lot of it going on) to get there even if he can't obtain a surplus police, etc., unit The major innovation presented here is not really new, having been used...

Transformers

G PLATE TRANSFORM Eft FuNy enclosed - 60 Cy. Sec. 800V CT - 250MA ------ MODULATfONI TRANSF. CHICAGO 4100 ohms CT OR 1H80 ohm it 220U tjhms - 200 Watt For 32 U A transmitter , *. 5.0(1 MODULATION TRANSF. THOft ABDSON -3200Z 50 Watts Tri, Sec. 1,1t 1 I> B - PrL 105 io 120V - 60 Cy. HR Sec, 6.3Y - 2.5A .5A 6.3V - 2.5A 6.3V - 10A PrL 440V - 61) Cy. See. 110-110 in reverse fur 440V ul 500 MA Tapped Tri. 105 to 12UV - 6ft Cy. Sec. 25V at 2A on any one tap at a lime T-4S314 200 -4000 . 5,00 6.3V -....

Ttt

UAXY 300 WINS IN THE STRETCH. A tough race all the way it was neck and neck from the art. But Galaxy, through superior breeding (research and development), workouts (field-home-obile testing), and the best owner trainer (World Radio Laboratories), came through in the retch and is paying off big for hundreds of cheering hams. When you buy the Galaxy 300 (300 itt SSB AM CW transceiver, covering 80-40-20-meters) you've got a winner 299.95 wired, make it a daily double...

Up

I had planned to put out a small (16 pages) monthly bulletin with an eventual circulation of maybe 2000, From the experiences of VHF MORE HAM GEAR for receivers, transmitter, as well as the smallest accessory, more amateurs everywhere make Lafayette their headquarters for all their gear.

Vhf Beams

Pggedr lightweight, and real performer*. Booms, diameter aluminum tubing eJements 3 16'7 diameter aluminum rod preotsembled on booms. Transformer dipole or Reddi Match. Dual and Quad Arrays available. Model AU4-I1 11 element, 2 meter, boom 12' 12-75 Modei A144- 7 7 element, 2 meter, boom S' 8+85 Model A220-1 H element, V 4 meter, boom 9. A430-11 11 element, meter, boom 5 7,75 Full siie, wide spaced, booms 1 Vif and 1 diameter,, element Va*' diameter aluminum tubing. Reddi Match far direct 52...

Vhf Colinear Arrays

Lightweight mechanically balanced VHF antenna sytlemi* Extremly high power gain, major front lobe, low SWft, and broad band coverage law angle of radiation and large capture area, 32 and 64 element arroys available. Model CL-1 2 meter, 16 element colinear. Model CL-216 1V meter, 16 element colinear. Model CL-41 meter, 16 element colinear* Modef CL-M Universal matching stub matches 300 ohm 16 element antennas to 200, 52, or

W Oi

2,5 2,000 1,25 4,000 0.62 8,000 Refer to Fig, and we've got it made. We can match the receiver to the line perfectly, and the 0*62 watt tap provides more than adequate drive to the speech amp. The transffirmer cost only 2,41, and is available from Allied Radio Corporation, Chicago, Illinois, The filter consisting of CI and the two rf chokes may be unnecessary, It's used at K5HPT because rf pickup in the telephone line outside the shack caused a feedback problem. One word of caution. Don't skimp...

Watts

The manufacturer has probably clone a good job in obtaining this figure, so take his word for it. All that is necessary to do now is to multiply your desired voltage by the turns per volt ratio, and presto the total number of turns Now for the bug-a-hoo that seems to rip everyone up . . . what SIZE wire to use. The current carrying capacity of a wire is directly proportional to its cross-sectional area, however, conditions under which the wire functions will add a multiplier to this statement...

Watts Watts Pep Small Package

With Companion AC or DC POWER SUPPLIES Order Through Your Dealer or Write For Further Information Order Through Your Dealer or Write For Further Information 05 UNIVERSITY AVENUE LOS GATOS, CALIFORNIA 05 UNIVERSITY AVENUE LOS GATOS, CALIFORNIA Wayne Green W2N5D Editor, etcetera

Wbve

New model iicrirs ton wiili 3 YHF translators, cryalal. and murr Mian 30 Jiiiili finality parts* Carefully assembled and tested. Measures only 3* x x Low noise ami better ihan I microvolt sensitivity. Matte in USA and uuiirameed* Available in the following inorte for 12 vults D< Input mc. 26.965-27.25i 50-51 50-54 144-148 Output UK. 1, '1.255 .6-1.6 14-18 50-54 Pr re SS.fiO > p+ . 8.50 ppd. 98.50 ppd. 10,50 ppd. Supply limited at thosQ low prices order now All above convenors are supplied...

Western

A7-10 Kearney, No Boohs To Read No Visual Gimmicks To Distract You, Just listen and learn Based on modern psychological techniques This course will take you beyond 13 w.p,m* In LESS THAN fa THE TIME Available also on magnetic tape See Your Dealer Sow

Wfzj

Further back than I like to remember I used to spend a great deal of my operating time down on the low end of the 75 meter band. One of the inhabitants of that area was W8UKS, Sam Harris, out in Burton, Ohio, We talked a lot and became pretty good friends. We both enjoyed DX'ing down there too. But Sam was much better known for his VHF work, believe he was the first W8 to poke a signal into the east coast and he was the one you listened for when there was a chance of the band being open or a...

Why Johnny

Why is it you strain to hear a choice bit of DX everybody else is working and you can't hear even a beat note with the gain wide open Or, you call and call a station and he works everybody but you You're getting out didn't you just work W2NSD 1 way up there in New Hampshire Well, relax there s a solution. Not a complete one, but it may answer some of your questions on frequency propagation, As ridiculous as the old clich sounds, you gotta hear em to work em. Yet, like an ice berg, there's much...

Wllz

One of the big problems at hamfests and club rigs is to hi marked with their first name and call. All sorts meetings is to have everyone plainly enough of stickers and pieces of cardboard have been tried, plus little cards which can be typed up and stuck in holders all have the same problem they are hard to read from any distance. The best answers to date are these engraved laminated plastic name badges which can be read by Cousin Weakeyes from seventeen paces. You are in luck. We've arranged...

Wpm Cw

Different types of emission AM, CW, RTTY, and SSB require different field intensities to he workable signals. For example, CW has a IT db margin over AM. On CW you don t need sidebands, and the receiver selectivity can he made very high to eliminate most of th noise. AM fone must be at least 3 kc wide and (lie noise in the receiver will be much greater. The AM carrier serves no useful purpose as far as the information content is concerned and yet it uses up most of the power No wonder the swing...

Wwto

As mentioned in the editorial last month, the Clegg Ihor was given a good stiff workout at our new VHF HQ station during the fune VHF ARRL QSO Party. Frankly, it was a spectacular improvement over anything we've ever used before. he Thor is a six meter transceiver that provides full VFO operation on the received frequency over its entire range of 50-52 mc. i'his is all that is needed for practical operating purposes, with nothing much inhabiting the higher regions of the band except wide band...

Xa Xb Xg

Sockets for Above Relay 2.50 We buy & sell large quantities of Military and Commercial Test Equipment. AN GRC. PRC, TRC and test equipment TS and AN UPM or UHM. What have you for sale or trade ANYTHING WE SELL ALL SHIPMENTS FOB BRONX, N. Y* 218 West Tremont Ave., Bronx 53, N, Y. intense interest in ham radio had a lot to do with his change to Tapetone, where lie hoped to produce a long line of ham YHF gear. Unfortunately merchandising didn't keep up with engineering and Telco had to drop out...

XTAL

The transformer is determined by the pan-adaptor input frequency. Select an inexpensive if transformer that will match the pan adaptor input frequency. Only the primary is used. After the circuit is completed it may be necessary to peak the primary for maximum ain. This is the only adjustment required in the converter. Connection to the receiver is made according to the instructions of your panadaptor manual. If you have a Surplus panadaptor without a manual, you may want to try this method...

Yagi

Ronald Lumachi WB2CQM 73 Bay 26th Street Brooklyn 14, New York Many novice amateurs, after digesting the first thrills oi radio operation begin to search out the elusive DX QSO, but the inadequacy of standard equipment (dipoles, long wires, etc,) tines not provide this satisfaction. Their radiation characteristics preclude a concentrated and directed rf pattern, Co answer the needs of the radio operator, I have designed an easily assembled, remotely tuned, light weight, vagi-type array that...

P O

Amateur and VHF Horizons, this seemed like a reasonable estimate. im Kyle sent in the copy for the first issue, 16 pages, and we ran off 1000 copies on our little offset press. It was a good issue, with a couple of terrific articles on Wide Band Balun Design and on SSB T-Pad design. We ran no ads in the first issue. The idea behind 6-UP was that we could run articles thai were of interest only to the VHFVr and thus might not find room in 73, The fast press dates involved assured that the...

Books

Wide-Sard FM for the Arnateur by Aagaand and Dubois. Covers specific conversion of Motorola gear to 2 meters. 47 pages Price postpaid Motorola FM Equipment Schematic Digest. Contains romprobennlve collection of Motorola transmitters, receivers, power supply, and inter-connecting It a grams for Motorola FM equipment manufactured between JEM and 1054, Covered Is 30*50 MC- 150-170 MC and 150 MC equipment. Crystal formulas, crystal correlation data and basic alignment instructions are given. A Teat...

Receiver

This new line of International receiver kits cover a wide range of amateur, citizens band and speciaJ frequencies. Designed for AM+ CW, or SSB reception, this basic receiver using a superheterodyne circuit* with re generative second detector may be expanded to a more elaborate receiver by the addition of other Add-QmCircuits. Sensitivity usable to below 10 microvolts for voice and 1 microvolt for code Nuvistor rf amplifier, mixer, oscillator, LT, transformer, detector 1st audio, and power audio...

Heath Company

Precision-built Linear Master Oscillator (LMO) 5 completely assembled and calibrated, ready lo install specialty designed dial assures accurate readout and smooth frequency control, PrebuMl. hermetically-sealed 2A kc crystal bandpass filter for SSB provides the excellent nominal snape-tactor of (60,6 dfr), Optional AM and CW tillers shown Installed. Precision-built Linear Master Oscillator (LMO) 5 completely assembled and calibrated, ready lo install specialty designed dial assures accurate...

Tmc

The Technical Material Corporation Mamaroneck. New York The GPR-91 communications receiver covers .54 31 mc in 6 bands with calibrated 160* 10 bandspread. 1 uv sensitivity, 350 cycle to 15 kc selectivity, crystal calibrator, noise limiter, dual conversion, S-meter. Size The 30OXL umverter is a dc dc converter for 12 volt input and 600, 700, 800, 275 volts + and 50 to 90 volts output. 300 watts, transistorized, with cable and leads. Size 6'A h, 5 w, 4M d. Weight 8 lbs. Price 1 19.95. Transistor...

Kbba

understand that they have decided not to count Greene County New Hampshire toward the CQ awards. I think that i pretty small, don'i youP TS-6G4 URM-30 ANALYZER for URC-4 Radio Set alignment and test contains 0-1 ma meter, metering switch, crystal oscillator, ant., cables etc. In metal carrying cas* 6 x 6 A. WT 4 bs. Excellent 8.95 Selenium type use with teletype printers Operates from 115 230 VAC, 60 cy. OUTPUT 115 V0CT .4 A & 110 VAC, 50 60 cy Size M Vax71 ax8, WT 43 lbs. . , New , , 8.95...

Quement Electronics

1000 SOUTH BASCOM AVENUE SAN JOSE, CALIFORNIA Northern California's Most Complete Ham Store'1 ately a triode-pentode similar to the 6CXS with a plate cap did not exist, So 1 had to make two tubes grow where only one had existed before Also the heater currents had to fit in with the master plan Fig. 3). I used another 6AK6 as a doubler and a 2E26 for the final. By removing the 47 ohm resistor the heater circuit seemed to balance out pretty well. (Modified circuit of rig. 3) With the 6CX8 socket...

Stay On The Air Plan

Not only w ll I give you a *errifit Jfade-m allow onte, by* you con keep your equipment ursiif you receive your shipment. If ordering on terms, please list following information on separate sheet and enclose with this order Name, address, age, married children Employed by Salary How long Own or Rent Home To whom renting or buying from Wife employed Own cor who buying from Hire to five credit references. The more information you give, the foster we can approve your credit. EVEN rF YOU'RE NOT...

Portable M Antenna Figure

A portable 6 meter antenna was made as in Fig, 9, i he a ligator clips connected to the antenna ends by the dial cord insulators enabled me to set it up almost any place. A piece of copper shielding braid is slipped over the 72 ohm twin lead as shown (34) and soldered to the coax plug to act as an unbalanced to balanced rf line transformer, I have used the rig for some time and it has worked very well for portable operation and also for fixed station at the home f TH. Yep. we're starting still...

WWPV

Cl, C2 10Q mmf variable condensers Ll, L2 Hug-in coils with links, as follows For power to 75 watts 15 meters BftW JVL-15 20 meters B& W JVL-20 40 meters B& W JVL-40 80 meters R& W JVL-80 For power above 75 watts IS meters B& W BVL-15 20 meters- B& W BVL 20 40 meters B& W BVL-40 Hi) meters- B& W 8VL-80 (Fixed link coils, JCL and liCL, can also be used) 6 through*panel insulators 4 stand-off insulators (for mounting condensers) 2 copper links 1 -co-ax bos connector 2- Pee...

Amateur Electronic Supply

Phone We. 3-3262 Hours Monday ond Friday, 9 A.M. to 9 P< M. Tuesday, Wednesday & Thursday, 9 A.Mf to 5 30 P.M. 6450 Milwaukee Ave, Phone Ro. 3-1030 Hours Monday, Wednesday & Thurv, 12 P.M. to 9 P.M. Tuesday & Friday, 12 P M. to 5 30 P.M. Saturday, 9 A.M. to 3 P.M. 23 Azalea Pk. Shop. Ctr. Phone 277-8231 Hours Monday, Tues., Thurs. & Friday, 1 P.M. to 9 P.M. Wednesday, 1 P.M. to 5 30 P.M. Saturday, 9 A.M. to 5 00 P.M. Send all Mail Orderi and Inquiries To...

Wstx

LIKE NEW 640.00 , . EX 75.00 EX 75.00 NEW 28,00 NEW i FAIR it .TiO EX 5ft. 00 NEW 75.00 EX 18.50 GOOJ O.aS NEW 8+50 NEW 4.75 GOOD IS.50 T& 452 U FM Microliter & Scope, 5-1 OR mc TS362 ASGfO Control Unit, 24 volt, ff eab TS4S8 U Echo Tin* w Accessories & C& > c TS9Z AP Amplifier Alignment Tnit. t> 0 cy TS59 APNI Te-t 400 00 ft Al'NI ranfii TS239A General Purpose Scope, 115V, tiO cy TSI55C Sig ( en 2TO0-34QO mc milipl w LmkjIe TSI2 Standing...

Wrl

World Radio Laboratories 3415 West Broadway Council Bluffs, Iowa The PSA-63 is an ac power supply to power any 50*100 watt transmitter or transceiver. 600 vdc, 300 vdc, or combination to 210 watts. 6 or 12 volt filament windings, 95 volt bias winding. Less cabinet, accessory kits available to modify for use with various rigs. Size 4 > 4 h, 6 d, 11 w. Weight 15 lbs, Price Kit 24.95, Wired 39.95. The Galaxy 300 is a 200 watt lJEP SSB transmitter for the phone sections mi 8u, 40 and 20 meters,...

The Technical Materiel Corporation

OTTAWA, CANADA ALEXANDRIA, VIRGINIA GARLAND, TEXAS XNARD, CALIFORNIA SAN LUIS 06 fSPO, CALIFORNIA LU2ERN, SWITZERLAND * POMPANO BEACH, FLORIDA Bottom view showing the rf gain control and the input cathode coil comportment. The NE 2 switch bulb can be seen just above the cathode coli, The ceramic CI capacitor is fastened to the chassis by two W spacers and 4-40 screws and nuts. Coil just above the NE 2 is the plate coil of the tandem nuvistors of 1he first rf stage. The angled shield separates...

1

Though the furor over incentive licensing and restricted voice bands is dying down, I see that QST still manages to round up a few let ters in favor of their stand each month, I don't know where they get them. We're preparing a bulletin of reprints of the best letters we've received on the subject, both pro and con, which will go out to all IoAR Bulletin subscribers ( 1 year). The Bulletin is unbiased and lets the letters speak for themselves. The September QST editorial invokes the spectre of...