Ytb

Jo fe W3KBN 1005 Twining Road Dresh r PA 19025 Here are two small shack helpmates, simple and inexpensive, but very handy. The first one has been around in many forms. Fig. 1 shows it is an astable multivibrator that will blink the LED about one flash per second if a mini-DIP op amp wilh typical 741 pinouts is plugged into the socket- The seli-containcd nine-volt batteries should give shelf life, as the drain is both minimal and infrequent. Some of the similar pinoui units are the 301,...

Juies Wenglare

Of the 53 stops fules Wenglare W6YO and the Yankee Trader made, three locations issued him a cense to operate amateur radio. The first was on Pitcairn Island VR6). The second was Mayotte Island FH0YO , followed by St Helena Island (ZD7YOI With these special calls, he made over 900 contacts, fhanfcs to the countries and the officials who appreciate amateur radio and made it possible. Polynesia, a four-mast windjammer of Windjammer Cruises. This is one of the ships that takes one-week cruise...

Incq

Wood R599 reciever set up and connected to the 1000-foot longwire antenna which is 60 feet high. The antenna coupler was built in a 3 x 5 x 7 minibox, Bud CU3008. See Photo C. Coils were mounted on the selector switch so as to be as mutually perpendicular to each other as possible to minimize magnetic coupling The Arco-type 315 compression capacitor has a range of 2525 pF tight and 1200 pF at 3 turns open Using the inductances indicated, satisfactory tuning was obtained from 20 kHz to 200 kHz....

West Walnut Compton Ca

Aico NJ 08004 HUNTING LIONS ON THE AIR CONTEST Starts 1200 GWL January 13 Ends 1200 GMT, January 14 The contest s sponsored by Lions Internationa and coordinated by the Lions Club of Rio de Janeiro (Arpoador), Brazil. Participation is open to alt licensed radio operators except members of the contest committee. The contest will be separated into two sections, phone and CWr with points counting separateiy and participation allowed in both modes. All bands 80...

Computerized Weather Station

Heath Company, the world's largest manufacturer of electronic kits, announces the availability of its new ID-4001 computerized weather station. The microprocessor-based ID-4001 indicates time, indoor and outdoor temperatures, wind speed and direction, and barometric pressure on an upright display panel utilizing farge LED readouts, tt will also display average wind speed and automatically calculate wind chiil factor as well. The lD-4001's memory aliows Instant recall of date and time of maximum...

Info

Programmable Divider With 74192

TS-1 Sub-Audible Encoder-Decoder Microminiature in size. 1.25 x 2.0'x .65 Encodes and decodes simultaneously 59.95 complete with K-1 element TS-1 JR Sub-Audible Encoder-Decoder Microminiature version of the TS-1 measuring just 1.0* x 1 25 x .65 for handheld units 79.95 complete with K-1 element ME-3 Sub-Audible Encoder Microminiature in size, measures 45 x 1.1 x 6 Instant start-up 29.95 complete with K-1 element TE-8 Eight-Tone Sub-Audible Encoder Measures 2.6 x 2.0* x .7 Frequency selection...

Kenwood

Beat the high cost of Deluxe 2 meter operation * Stores * Scans Reads Out Frequency MML 144 100, 100 WATT 144 MHz LINEAR POWER AMPLIFIER Fully Protected Against Poor Load VSWR, Overheating and Excessive or Reverse Supply Rails Equipped with RF VOX and Manual Override Supplied with Power Lead and AM Connectors

Outputs To Sequence Detector

Dua -tone mu t frequency defector. Nofe 7 buffer can drive two TTL loads maximum. The remaining 4 bits of the address are a function of the access code as shown PROM 1, which initially has all of its output bits un-programmed at zero, is programmed at the five access code addresses shown to have output bit 0t to be 1 The control digits represent the last digit sent in a sequence, and, therefore, the binary counter portion of the PROM address would be 0101 as shown, representing the...

V

Kenwood's TR-7600 with optional RM-76 Microprocessor Control Unit offers a new dimension in channel memory and scanning capability. and, it's a combination that's hard to beat if you're looking for optimum versatility in a 2-meter FM transceiver. Together, the TR-7600 and RM-76 offer you the following * Memory channeL with simplex or repeater (plus or minus 600 kHz trans* mitter offset) operation* Mode witch for operating simplex or for switching the transmit frequency up or down or for...

Free

Wilson Mark IV Hand Held 259.95 2 Crystals .S2 .52 no charge BP4 Battery Pack 24.95 WC14 Wall Charger 15.95 Rubber Duck Antenna no charge (installed at time of purchase) .61.95 C& A Electronic Enterprises or Distributors of Commercial and Amateur ftodlo Equipment Quotes On All Your Amateur Needs 22010 S. Wilmington Ave., Suite 105 Coll (213) 834-5868 (California FOR OUR TOLL FREE NUMBER (Out of California) be modulated to obtain any power output). Step 10 Replace the remaining 37-MH i...

Calgary Hosts Second Annual National Symposium

The second National Amateur Radio Symposium, convened by the Canadian Amateur Radio Federation, Inc,, wound up its two-day session In Calgary on October 1, The conference, hosted by the Calgary Amateur Radio Association under the auspices of the Amateur Radio League of Alberta, made severa) important recommendations to the senior officials of the DOC who attended. concerning the future of amateur radio in Canada. The more than 80 participants included amateurs representing major organizations...

Even Better

NEW' The 13-51 OA P.L.L. synthesizer delivers 1,200 frequencies between 143,00 and 149.00 MHz the full 2-meter band, plus MARS. NEW The 13-51 OA will operate with up to a 6 MHz split between TX and RX NEW The 13-510A microphone connector is pre-wired for your Touch-Tone NEW The 13-51 OA has a 7-pin accessory connector for your Touch-Tone dial, tone-burst generator or discriminator meter, 'TnucrvTone is a registered ractemarfc d AT& T NEW The 13-51 OA is compatible with available popular...

Mfj Introduces

This new MFJ-721 Super Selector CW SSB Filter gives you 80 Hz BW, steep SSB skirts, noise limiting, 2 watts for speaker plus more. This Hew MFJ 721 Super Selector CW SSB Filler gives ytni a CGmbmaiion of performance and leaiures available only from MFJ * Razor sharp BO Hf non-ringing CW filter * Steep Skirt SSB filler * Selectable pea* and rough notse limiting * Plugs in phone jack Two watts for speaker Simulated stereo reception inputs for 2 figs Speaker and phone lacks Auxiliary 2 watt...

Kantronics

Vri jcccpl Vhm Minct Ctera,-. zm-. * rttnvn. COMPLETELY FREE-STANDING, TELESCOPING TOWERS. fUT IT RECHT WHtHE YQU WANT it Wiitf one nand. IF ' to trDm ir to M high a 55 Fr > J EJicMv ihi i m roceiving tevel from ce Ham or TV Wnen 'j irtjnMD idiuat yciu mteima inttvii a ooe Or pyJ1 mirtlaftkA zran* -main -L-in ur - t -a i* i n V rep antenna*. 1 re ircntioci of our mo eL*. this K TKH1 carive . *-- row) OU an tui BAEAKOVEF& TH . -E SCON DEMENCE Oui OfAahovars not on it tHOBpe. lll lf if own...

Vienna Va Community Center Wireless Society

The Vienna Wireless Society will hold its annual Winterfest on Sunday, February 25, 1979, at the Vienna Community Center, Vienna, Virginia. There will be tables, sales, prizes, food, and frostbite tailgating. Doors open at 6 30 am for vendors and 8 00 am for the general public. Admission is 3.00, including one prize ticket 2,00 for an extra prize ticket and 1.00 for frostbite tailgaiting. Preteens with parents are free. Tables range from 2.00 to 5.00t depending on the quantity. Reservations...

C

Ajjlfl YAESU ELECTRONICS CORP., IS9S4 Downey Ave., Paramount, CA H723 YAESU ELECTRONICS CORP., Eastern Service Ctr., q tZ Princeton, Glend * 114., A broadband preamp makes this unit tick, to be used. It is recommended that the LO frequency be kept relatively high, say, at at least 40 meters, to ameliorate i-f spurious responses as previously mentioned. If a 40 meter ham band receiver is to be employed, simply use a 7.0 MHz crystal and retune the LC tank in the drain circuit of the 2N5458 FET....

P O BOX

MISSISSIPPI STATE, MS 39762 CALL TOLL FREE 800-647-1800 Fot technical information, order repair status, in llix., outside continental USA, uf 601 -323 5669. 8D44 Keyer On A-Chfp Replaces aiuaj, 514,95 Apr 7S HH, Feb 76 QST flstfio Ndbk 75. Apt Nfttbh 77 7S 8044 3 iC,PCfl.SocketPMsnuaL 24.95 8044-4 Semi Kit 54.95 B045 Morse Keyboard On A Chip IC . , . 59 95 8Q45-1 IC lt PCB gt FIFD lt Sockets, Manuat,. 89,95 8045-2 Semi-Kil 159.95 3 46 Instructokeyer On-A Chip IC ,, 49.95 8046-1 Semi-Kil, 79.95...

Dx

KHz at 1500Z is a good place to snag a few new ones. As with any net. listen until you understand the correct call-in procedure, Congratulations to the new officers ot the Iowa DX Association. Doug Byai WOSML is the president, Gary Letchford K0LUZ is VP. and Fred Benson K0AT is the secretary treasurer If you would like to jom up, drop Fred a note in Cedar Rapids. C02FA notes that it takes four fRCs and 1 lt f from his own pocket to purchase one air mail stamp. This is another case where one...

Kenwood M Fm

KENWOOD Transceiver KENWOOD Transceiver TS-820S 160 thru 10M TS-520S 160 thru 10M 182 Reader Service ee page 227 50 Channel s 5 ban Li- Pr mm 50 frequencies from infinite ir quttncy c omen nations. Designate certain brinks for ipe ric types of acti-zi , lor example. u amp a bank I-E Har Police, i 1-20 for Secret Service. 21-30 for Drug fcnforcpment Agencies. etc 5-Band Coverage Include L.nw nd F-Figh VI IF bands, UHFand 2 meter plus amp meter amateur bands With special programming rechniques....

The New Yaesu Ftra

If your two meter FM operation is largely mobile, you probably prefer a crystal rig which you can tune from channel to channel without taking your eyes off the road. Of course, you have to have a pretty good memory, better than mine, to remember what repeater is on what channel. About a year ago, Yaesu in troduced the FT-227 l,Mem-orizer which allowed you to seJect a channel and automatically return to it when desired. Those folks at Yaesu know how to gild a lily, for they now have announced...

Heavyduty Replacement Transformers

BTH_K-200Qn re COLI INS 30S-1 Po wir . COLL INSKWS-1 Plate COLLI N 5 5 I 6F-2 Tower . DENTRON 1 60-1 OL Power DRAKt L4B Plate COWStT G5E3-100 Power ,. GONSET GSB-20J Power , H-CRAFTERS HI-32 Power M CR AFTER 5 HT-37 Powirr HEATH DX LOG LV Power HEATH OX-1 00 Modi . HEATH MX-10 Tower. HENRY 2K Piatt HEWnrZK-Z Power . HENRY 2K-4 Power i 95 95 Si IS Si 50 S I 55 S I 65 I 65

Massachusetts

Medford North Adams Waltham Worcester MICHIGAN Ann Arbot Clawsoii Fhnt Grand Rapids Lansing Mtdtand Mt. Clemens Muskegon Electronic Surplus Sales Communications Specialties Ltd Amateur Hadto Equipment Company Pelican Elec. tronics Mvnard Eiectronipi i ne. Pelican Electronics Pelican Electronics Wm. B. A gt ten Supply Co. Computen Unlimited Computer Workshop of Ral ti more Everything Ele-.trOnic Church vitfe Fleet romes J W Eteciromcs Computer Workshop Heath kit Electron t Cante Computers Etc....

Catalog Of Hardtofind Precision Tools

Digital Capacitance Meter

Jensen's new 144-page catalog is jam-packed with more than 3000quality items. Your single source for hard-to-find precision tools used by electronic technicians scientists, engineers, instrument mechanics, schools, laboratories and government agencies. This wanted catalog also contains Jensen's world-famous line of more than 40 tool kits. Plus 10 pages of useful 'Tool Tips to aid in tool selection. Send for your free copy today J7 TU-17D Kii 143.96 wired. . 2 9.96 fS Reader Service see page 22...

Ultra Compact Watt Versa Tuners For All Your Needs

gt gt MS2 Order any product from MFJ and try it. H not delighted, return within 3D days for a prompt refund less shipping . Order today. Money back if not delighted. One year unconditional guarantee. Add 2.00 shipping handling. For technical Information, order repair status, in Mississippi, outside continental USA, call 601 -323-5869. Order By Mail or Call TOLL FREE 800-647-1800 and Charge It On MFJ ENTERPRISES, INC. MISSISSIPPI STATE, MISSISSIPPI 39762 MFJ-901 VERSA TUNEfi HATCHES ANYTHING,...

Wv Wilson Vertical Trap Antenna

No bandswitch'ng is necessary with the new WV-1 antenna, it is an excellent low cost 10-40 meter vertical that offers an electrical quarter wavelength and a low angle of radiation. Advanced design assures a low swr on each band. For more information, see your favorite dealer, or contact Wilson Electronics Corpora tion. Consumer Products Division. PO Box 19000, Las Vegas NV 89119V Reader Service number W2. New concealed UHF antenna from Antenna Specialists- Alt Davis Frequency Counters deliver...

Model W Tcxo

ALL NEW ALL UNPARALLELED DSf QUALITY The mod 3700 700MHz frequency counter features .2 PPM 0 40 C proportional oven time base . Buift in battery trick charger less batteries,. Combined in a rugged .125 thic aluminum cabinet makes the 3700 ideal for the commur cations industry, professional service technicians, ar sophisticated amateur radio operators. sophisticated amateur radio operators.

Dumont Scope

Wlh rt dc. 100 khz sano wwflti usaofc 10 300 Ktii 100 Mv futt Kite wrt ansft ii SwfflLi 2 30,000 Hz InjJttt m psJa 'fiiamfigof by to pi 230 VAC 50-400 gt 2 ix19 65 lt t wi t iShipped via r ,jt gt 1 Used - eparatiJe with All Prices F O B. Lima, Ohio. Please Allow lor Shipping WHle for our Dig 36 page catalog Fl Aadre s Dept 73 Phone 419'227-6i 73

The Aed Electronics Ftr Scanner

T recently acquired an FT-227R 2 meter rig. White this is an excellent rig on its own merits, one of the major factors influencing me was the availability of a good, Inexpensive scanner for it. Within days of getting the rig, I got a scanner in kit form, and installed it in the rig. it worked very well exactly as advertised. For my S34.95 plus 1.50 for postage , J got a mailing pouch well-packed with goodies. There are some 35 components in all., including 2 ICs and a glass epoxy circuit board....

Lkm

9orr ACoper tmVJn TNArtsoiuhon Re amp s tancetc 20 rneg tSKcuracy Small portable compMtfyassenf mease tyt guarantee Best Comreil your TV set mto a hi h quality monitor without altetnng nur mal ustge Comptete kit nMh l iM wnttMdlons CT7015 direct drive chip displays date and time on 6- LEDS witfi AM-PM indicator iijrm dpa 'eaiure i dudes Duzzer Complete nth an pans. oo ir supply and instructions 197B IC Upc t Mnitf Manual S24 50 Com-plett IC frta selector, 2t75 pg Master rtfer net gindi tKsr 42...

Sst T-4 Ultra Tuner

Using RL to set frequency and method a or b. set the low frequency limit. Pot PL preset to 1290 Ohms to start. a, A counter hooked to U32c-8 and set for frequency should read 7 3529412 Hz but few digital counters can handle the low f requencies accurately, so use period and set RL for a period ol .13600000 seconds, b, In the read mode, the readout should display 360 degrees 1360 counts . Check the two extreme settings that produce a 360 degree readout and set ft midway between these points....

Drake

MAIL amp PHONE ORDERS WELCOMED BANK AMERICARD ACCEPTED. ALL UNITS GUARANTEED 4033 BROWNSVILLE ROAD TREVOSE, PA. 19047 215 357-1400 1 800-523-8998 215 757-5300 A trade school extension course may be your ticket to a ticket. R.S. isenson N6UE 4 68 G fen view Drive Santa Maria CA 93454 Have you ever wondered, while reading the advertising for electronics courses, what it would be like to take one in common, the schools, institutes, or whatever thev call themselves, emphasize the goodies that come

Uhf Receiving Converters

M Q D E -C432-2 C432-4 C432- 5 432-7 C 432-9 Special RA.NGJ i-f RANGE 432-434 432-436 435-437 427 .25 439,25 28-30M H 144-146 28-30 6 1.25 61 ,25 Quality VHF UHF Kits At Affordable Prices LET YOU RECEIVE OSCAR AND OTHER EXCITING SIGNALS ON YOUR PRE S- NT HF RiClIVER I A 9 Extruded Alum Cose with BNC's Fo above Converters Optional S12 95 MORE SENSITIVE MORE SELECTIVE 70 or 100 dfi EASY TO ALIGN WITH BUILT-IN TEST CKT5 LOWER OVERALL COST THAN EVER BEFORE R70 6-chonneJ VMF Receiver Kit Tor 2M, 6M,...

Rf Power Labs Introduces Model V Amplifier

To announce the release of their newest amplifier, Model V350, ft is a Jj-kilowatt dc-input alfmode VHF amplifier designed for base station and repeater use. The V350 amplifier Is designed for the radio amateur, but can be used on special orders over 5 MHz bandwidth, from 135 to 170 MHz. It is capable of producing more than 350 Watts of rf output power into 50 Ohms when driven with 10 to 15 Watts. The amplifier weighs onfy 52 pounds, including the built-in ac power supply. For continuous duty...

Sam Harris Wfzj

On page 8 of the September issue of 73, we printed a picture of Sam Harris and his wife Helen. Word arrived from his son, Pat, that Sam died in early November. VHFers will miss him. For some reason, Sam and I clicked early on I think it was around 1948 or so that we began to get into extended contacts on the low end of 75m. We both shared an interest In 75m DXing in VHF and in learning more about the anomalies of life. When I moved out to Cleveland and became W8NSD in 1951, I visited Sam and...

Trac Message Memory Keyer

Trac Electronics, inc., has in troduced a new completely CMOS state-of-the-art Message Memory Keyer. Containing ali CMOS integrated circuitry, the Message Memory Keyer contains two-message capacity. Each message has expanded 512-bit memory capacity 50 characters, approximately . The keyer can record at any speed and the messages may be replayed at the same or any other speed, A unique repeat function allows the operator to repeat the message played, as in calling CO. The heart of the Message...

Telex Cm-1210 Headset And Microphone

A-C-D-E-Etements lt 25-1000 MHz 38.00 ea The Ham ill rotor sets new levels of rolor performance Snap action switched wedqe brake amp rotational controls brings pinpoint accuracy to any directional beam New motor and brake designs offering pre brake action stronger iock-in place action, make the Ham III ideal for in-tower mounting. The A-280 is as close to the ideal antenna as you can get. Features 47 tapered 17-7 starless steel whip Magnetic mount has roof-top...

Hal Tronix

DELUXE 12 BUTTON TOUCHTONE ENCODER KIT utilizing the new ICM 7206 chip. Provides both VISUAL AND AUDIO indications Comes with Its own two-lone anodized aluminum cabinet. Measures only 2 3 4 x 3 3 4 Complete with Touch Tone pad, board, crystal, chip and all necessary components lo linlah Ihe kit, PRICED For ttiose who wish to mount ihe encoder m ,1 hand held unit, ihe PC board measures only 9.'1 fi 1 3'4 This partial km with PC boarfl. crystal hip and components

7400 1hz Oscilator

Mc4024 Vcm

Ot the cabinet The cabinet is Radio Shack part number 270-281 and is 5 7 8 by 9 by 4-7 8 The four BCD thumbwheel switches were purchased from a local surplus house, but may be ordered from Circuit Specialists Co,, P.O. Box 3047, Scottsdale AZ 85257, You will need two of the end plates, part number 435245-2, and four of the BCD swiU hes, part number 435308-2, If you buy your BCD switches at a surplus store, be sure they are cod The relay, RY-1, also took some doing to locate From the photographs...

Mfj

Lets you zero in SSB CW signal and notch out interfering signal at same time. The MFJ-752 carries a full one year unconditional guarantee. Order from MFJ and try it - no obligation. If not delighted, return it within 30 days tor a refund less shipping . To onler, simply call us toll free 800 647 1600 and charge it on your VISA Dr Master Charge or mail us a check or money order tor 79.95 plus 3,00 for shipptngtfiandling. Don't wail arty longer to use Ham Radio s most versatile lifter. Order your...

Mirage B Vhf Power Amplifier With Built In Rx Preamp

Mirage Communications is proud to introduce its new 2 meter solid state amplifier The B1Q8 represents a new generation of all-mode amplifiers for VHF use. It incorporates operation features that have not been available before in a single amplifier. The B1Q8 is designed to operate on AM. FM. SSB. or CW, with a power output of at least 80 Watts for 10 Watts input. A built-in receive preamp is standard The preamp utilizes a J310 FET in the latest low-noise circuit design. It provides at least 10...

New Meter Fm Mobile Transceiver With Memory Features Optional Microprocessor Control Unit

The TR-7600 2 meter FM mobfle transceiver with memory, and an optional RM-76 microprocessor control unit, which provides six memories and various scanning functions, have been introduced by TrioKenwood Communications, Inc. 4-MHz coverage 800 channels on 2 meters and Includes a memory channel. It operates on simplex same transmit and receive frequencies or repeater pius or minus 600-kHz transmitter offset modes. Furthermore, the memory can be used to provide a transmit frequency for accessing a...

Order Your

FOR YOUR FREE COMMUNICATIONS ELECTRON CS BEARCAT SCANNER CATALOG, CIRCLE C5 ON FREE INFORMATION CARD WfeYO's odyssey ends, as the Yankee Trader finally returns home. James amp Seidei WA6FEI 1066 N. Westside St. lules Wenglare W6YO set Jsail aboard the Yankee Trader from Freeport, the Bahamas, on February 15, 1977, for a ten-month a round-the-world cruise His westerly circumnavigation of the globe, his search and exotic ports of call, and his operation of amateur radio, both at sea and on land,...

Transistors

2NR -I 2 GHa, Pd max 3.5 W, Poul mi a 2 GHz 1.0Wt Pin 310 mW, efficiency 2 GHz 30 , round shape. Similar to RCA 2N5470. 54.95 2NR -2 2 GHz, Pd max 8.7 W, Pout 2.5W, Pin 300 mlVt efficiency 13 . cross shape. Similar to RCA TA84Q7 5.95 2NRF-3 2 CHz Pii 21W, Pout 5.5 W, Pin 1.25W, efficiency 33 . cross shape. Similar lo RCA 2N62t gt 9 gt 56.95 2NRF-4 2 GHz. Pd 29W, Pout 7.5W, Pin L5W, efficiency 33 , cross shape. Factory selected prime 2N6Z69. S7 95 Also available FET-6. house numbered General...

Speaker

Block diagram of the S.H.A.F.T. piece of vectorboard 2Yj x 5r uith enough clearance that the speaker frame also on the vector-board does not touch the front panel All parts other than those on the etched board, and C3. F1, J1. and T1 are mounted on the vectorboard Difficult to mount parts are held in place by epo cement marking of the panel is done with embossed tape Print wheels for embossed-tape writers are available with Braille symbols. Switch SVV2 should be marked as shown on the...

Ncs

Convert your computer friends to hamdom A novel use of the MIDS function is only one feature of this relentless program. There have been a few articles lately in the microcomputer literature concerning the creation of a radio network for the interchange of information. lit has been mentioned that the amateur radio service would provide a natural environment in which to impieiment such a network. For several years, amateurs all over the globe have been exchanging files in the form of slow scan...

Icomics

Regular 29 , save 50 buy an ICOM IC22S for 299 no trades and take a 50 credit for another purchase. Regular 229, save 30, buy a Drake TR33C for 229 no trades and take a 30 credit for another purchase. FT101E - 799.00 FT101E - 75a00 FT 01 EX - 699.00 Boonton Q Meter S295 Tektronix 5140 - 249 Tektronix 545A . . . , 950 5 3 54A Plug-in wide band preamp . . 75 Bendix BC221 Freq Meter 39 Polarad Spectrum Analy prs A84T, . . 1695 Hewlett Packard 400C 75 Precision E-400 Signal Generator. , , . 125...

Meter Announced By Dynascan

Dynascan Corporation has just announced the introduction of the B amp K Precision model 620 portable digital capacitance meier The 320 is a compact instrument capable of measurement over the wide capacitance range of 0.1 pF to 1 farad. Accuracy is said to greatly exceed the tolerance of most capacitors. The unit features a bright 4-drgit LED display for easy reading in laboratories, product iines, or field applications. The capacitance of virtually any capacitor can be measured quickly and...

Free Mfj Manual 8043

Has speed Control 8 10 50 WPMH LED to Show which memory i in use and when it ends, has record and playback control, and has up to twelve 25 character messages plus a 100. 75t 50 or 25 character messages. MFJ 721 Super selector CW SSB filter Th s new filter g,ves ou 80 Hz BW steep SSB skLrts noise timing 2 watts for the speaker select your bandwidth and has an 8 poie active IC filter. Adjust your antenna quickly tor maximum performance. Measure resonant frequency, radiation...

M Sbbh

Now you can forget about pnce performance trade-offs when you select a frequency counter in Sabtronics1 Model 8100 kit you get all the characteristics of superior performance at a low, affordable price This frequency counter employing LSI technology has the performance and inpjt characteristics you demand guaranteed frequency range of 20Hz to 10QMH 10 Hz to 120MHz typical selectable hi lo impedance superior sensitivity selectable resolution and selectable attenuation Pius an accurate time base...

The Chronicles Of .76 K6mvh

A noted local amateur recently said to me LAt least the .76ers had class 51 He was referring to the mid-1960s, when a group known as the i4.76ers ruled southern California FM with a 'Ntonguenn cheek iron thumb.11 That was the pre-repeater eraF when only a handful of hams inhabited two meters and even fewer ma- jr . i i, _ chines existed. Over a period of years, the .76ers had developed jamming into an art form. But being jammed was part of being a 76er1 and all on the inside looked at it as...

Lm380n Squelch Control

Squelch Control

Voifage-confro ed osc afor. have fairly decent integrity, They must, in one way or another, meet their advertising claims or ihe post office would rab at them like an alligator on a short squelch-tailed repeater going after a windbag. From the advertising, it s obvious that some of the schools offer Heathkits as the hardware inducements. Others claim to offer kits of their own design If it s the former, the Heath catalog spells out the specifications for the would-be student. If it isn...