American Crystal Supply Company Po

WEST YARMOUTH, MA. 02673 (617) 77 I -4634 Sure, I know that the future is digital, but analog has its rightful place, and that place just may lie in your workshop- It certainly does in mine ily through general electronic supply houses. This Japanese-made import is distributed by GC Eleclron-icsr 400 South Wyman St., Rockford IL 61101. Reader Service number 47 Meter protection is a particularly important feature of any item of test gear. The Calectro unit is well protected by dual silicon diodes...

Cushcraft Antennas

A4 N w TnLnnd Be m CM5- j m A3 New 1 riband Beam 10IS 20m AV3 Nevt 10 5-20m Vtitt,c AV5 New 'O-SOm Verlu .il AHX 2B Ne* ftingo Range m A3 -T9 m ftwme, OX fli m 22QB 220 MHi Baaffler 31 4 B Jr fl,mmfi i 4-1-1 h MHi 214FB Jr Bh cimei l 44 1.18 MHz 4147-1 ) l -Element 2m MINI UA0 HQ 1 ALLIANCE HD73 Rotor CD HAM fV ROTOR CABLE BG& U FcJ*m 95 Shu-ln 8 wife Roto* * 1 & 6 a .* BUTTERNUT Hf fiV-iit V rt ul KLM ANTENNAS 160V 160 MHe* Ve rr i KT34A 4*f Femtnt TrJtj ihi Be, m ti rrii nt Trih,hr .l F...

Daiwa

Bill Me sfce, a ham who hails from the New York area, launches his Craftaire Viking ot 3-meter wingspan counted his is because they are better prepared. As each ham is called to the launch area to fly, he collects his transmitter from the Impound Table (All transmitters remain impounded except when tn use in the contest, avoiding jamming through accidental use) It carries two colored streamers on its antenna one color is black denoting a six-meter operating band, and the other color shows which...

Electronic Hobby Innovations Granby Street Suite

Mounting the BNC connector to a spare belly inspection plate. Note that the cable is securely clamped. ing been on the airplane. Not only that, you will be able to operate any band you wish simply by using plug-in antennas for the various bands. The trick is this Co to your friendly airplane parts store and buy an extra belly inspection-hole cover plate for your airplane. Drill this extra plate to accommodate a BNC female connector. Mount this connector onto the plate with the female...

Info

Tyco 001-1 )B80 Same as 2l94F 10 7 MHz narrow band 3 dl bandwidth 15 KHz min. 20 dB bandwidth 60 KHz min, 40 < 1B bandwidth J50 KHz min. Ultimate 50 dB insertion loss 1 dB max. Hippie 1 dEJ max. Ct. 0 pF 3600 Ohms _S3. 33 t'Ji_ Tyco 001-1 )B80 Same as 2l94F 10 7 MHz narrow band 3 dl bandwidth 15 KHz min. 20 dB bandwidth 60 KHz min, 40 < 1B bandwidth J50 KHz min. Ultimate 50 dB insertion loss 1 dB max. Hippie 1 dEJ max. Ct. 0 pF 3600 Ohms _S3. 33 t'Ji_

Iwthim Ik

J.dltltPm, liitiilir 14 1 Aute Cinct ut 1)95 IhBllii CiKt tll 14.IB ., - -il m.,. i i.i rainn pu wjnr wfur nrnu m nut P nahJr Hh flltHiip Slam l unrjllpin iLhr pthV I Bducb n ihn II.0V et un n-4 i v i-. -ii* g . 1 V CT flii diug -'S 4V n iqo Ihi S l-.-l 1*1) VKIIlMriim

Tb

Foreign 35 1 year only US funds Ptease allow d to 6 weeks tor delivery 73 Magazine PO Box 931*Farmingdal& NY 11737 Without the endless fillers on station activities and club news, 73 is able to publish far more information, valuable information. . .on harnminy and ham equipment. You may or may not be a pioneer, but you certainly will want to keep up with what is happening and what the new ri s are going to be like, Andr frankly, your support of 73 is...

Ssv

in this project, four into one will go FT. M a reel lino W3BYM 13806 Parkland Drive Rockville MD 20653 It was on Roanoke Island, located near the Outer Banks of North Carolina, where I first met Dick Schuites WB2PEF from Cherry Valley, New York. Dick had brought his HW-8 plus tuner and bridge with a box of coaxial cable and antennas for a week of ham camping on the island. Being thoroughly satisfied with the simplicity of operating the HW-8t I purchased one for my own camping usage. However,...

Study Guide And Novice Study Tapes

NOVICE STUDY GUIDE SG73S7 by Tlmoth* M D n. NSRK He*e is the mosl up to date novice guide available. It is complete with jnformaion about 'earning Mors* Code 'he atest FCC amrite(ji regulations and the current FCC applicaiion forms. This guide nor a question answer memorization course but rather it emphasises the practical side of getting a ham license and putting a sijtion on the air. It reflecls what the FCC expects a Novice to know withoui page after page ot dull theory The most current...

Microwave

LNA-1 2300 2 stage prump. includes 49,95 PC board, PC board parts and instructions (Jsi with (JCC-LSMC-I, SMC-2. & Other ton rtei a. UCC I Basic downcpnve ter, included PC S 38.50 board, PC board par s and brief instruction*. < 1_NA-1 and (JCC-l made by Universal Communis catkin*, Ailington, Te*asr) SMC-1 Deluxe Introduction to microwave 451.95 package. Includes CJCC-tt very detailed step by step assembly manual* more parts, the Microwave Antenna Cookbook, Lots of in format ion on...

Pend Oreille

On August 27-30,. the Pend Oreille Amateur Radio Club will be operating a special event station from the Pend Oreilie County Fairgrounds in Cusick, Washington. during the fair. We will be on the air each day from 1600Z to 0500Z using the Newport High School Radio Club's call (WB7TBN), Frequencies will be (SSB) 14,340, 21.400, 28.700, 3945, (CW and RTTY) 3715, 28.090, 21,090, 14.080, and 3650. There wilt be a special commemorative QSL card available to all amateurs who contact our station and...

Connectors

PL 259 (o BNC flJQ-255 S3.S0 at 1TJ --------------- . . L . I _ . . 4 I t 4 tOfK PL 259 & SO 239 rF-H a * 6 4+H-M 1 DouiHe Male i h paler-cord 'RCAipwplugsea-.-'wd VHOD Reducer UV1 TSOi 1011.99 UG-255 PL 2 to BNC adapted-------- I3J0 Connectofft- s Hpping 10 -r W'j. *1 50 min.mij v FREE CATALOG-VISA WASTER CHARGE COD ADO tl SC FLA ftES ADO -

Technical Library

BEHIND THE DIAL BK73Q7 By Bob Grove more fun out ot shortwave listening with this Interest irtg guide o receivers, antennas, frequencies and Interference. S4 95 * THE CHALLENGE OF 1W-BK73 G-IS the newest book in the 73 technical library, dedicated to 160 meter operating. SI Dunn provides all necessary information to get staged on ihts unique band The all-importitnl antenna and ground systems are described in detail. The introduction contains Interesting photos of Stew Perry's (Ihe King ol 160)...

Hkm

One of the neatest items we have cone up with. Operates on 8 to 20V. A C, or D.C. (on board diodes). Separate inputs for phono, radio, recorder, etc. Separate jack for head phones. Replace our car stereo amp. Easy hook up approximately 10 min. with Our how to1 instructions. Adjustable from 1 sec. to 1 hr * Control up to 1 amp Turn Things On or Off Kit includes all parts necessary to build this exciting kit-Uses Children's T.V. Darkroom exposures -min. I.D.er - Egg Timer Windshield Wiper,...

Meter Beacons

The 10-meter band is very dependent on solar activity. During the peak of the sunspot cycle, the propagation conditions on the higher bands (10, 15, and 20 meters) are superb. The bands are open just about all the time. All parts of the world are coming through at the same time. It is not unusual to work all six continents within five minutes. When there is a disturbance, however, the band is as dead as a doornail. Going back a few years, there was quite a bit of interest in studying...

Isopole Now Available

12 channels crystal controlled * 12 channels crystal controlled * Special modifications tor CAP & If you're not on 220, now is the time to MARS available try it with an FM-76 Phone (717) 299-7221 today to place your order or to request a detailed brochure describing these transceivers and related power supplies, antennas, amplifiers and other accessories. *Special quantity pricing is available on the MARK 3 and FM-76 transceivers. Get your group together and call for a quote on your...

Moving

Lei us know 8 weeks in advance so that you won't miss a single issue of 73 Magazine. Attach old label where indicated and print new address in spjee provided. Also include your mailing label whenever you write concerning your subscription, It helps us serve you promptly. Write to Subscription Department P.O. Box 931 Farmingdale NY 11737 if you have no fabcf handy, print OLD address here.

Sartg Worldwide Rtty Contest

Contest Periods 0000 to 0600 GMT August 15 1600 to 2400 GMT August 15 0800 to 1600 GMT August 16 This is the 11th annual contest sponsored by the Scandi* navian Amateur Radio Teletype Group (SARTG), Operating classes include (a) single operator (b) multi-operator, single transmitter (c) SWL. Please note I hat the logs from multi-operator stations must contain the names and callsigns of ail oper ators involved. The same station may be worked once on each band for QSO and multiplier credits. Only...

Occupation Contest

The Radio Association of Erie PA is sponsoring its first contest. The club thought it might be interesting to see what kinds of work or occupations fellow hams are involved In. The contest is open to all amateur radio operators, RS(T)P occupation and state, province, or country. CW 50 kHz from the bottom of the ham bands. Phone 50 kHz from the top of the ham bands. Repeater contacts are not permitted however, simplex is permissible. Count 1 point per QSO with multipliers determined by the...

Sep

he 6th annual Tidewater Hamfest-Computer Show and ARRL Roanoke Division Convention will be held in the Virginia Beach Pavilion on September 26-27, 1981, Featured will be ARRL, traffic, and DX forums and XYL free bingo. FCC license exams wiH be given to those sending a form 610 request in advance. Free transportation to the oceanfront wili be provided for the Neptune Festival. Admission is 3.50. There will be an advance ticket drawing for a handheld FM transceiver. Rea market tables are 5,00...

Texas

COMPUSHOP'N Fwf Houston COMRUBHOP PiCi rJSC COM PUT e* CONCERTS Batumcni C0MCl_ EF HCBBr s1 n COMPUTER PORT Ar -fltoii COMPUTER SALES AND SERVICE. Foil Wortn COMPUTER SOUJTKtiS SanA a .u COMPUTER TFO SSOC-a'ES E Paso COMPUTERLAND OF SW HOUSTON. Hsustcn COMPUTERS BY O NEiLL. Lakp Jicwn COMPUTED .V-fci'e* GATEWAY ELECTPON.CS. KA ELEC'RONSCS Baiiss MA RYU AC INDUSTRIES < FCS DuJ HduttOn PAN AMERICAN ELECTRONICS iWS D 1 litflf R L COLE'S ELECTRONlCSi Stn .1.AGHA.TER BOOKS.-SC HdmjI ' UTAH

Brits

2-way Radio Service 2508 North Atlanta Road Belmont Hills Center Smyrna. Georgia 30060 Phone (404) 432-8006 A EII Brings you the MLM Breakthrough be heated itself. This results in a column of air which leans over and tinfIs downwind while going up. Since all this is invisible, the only way a pilot can tell if his plane is near one is to watch its movements, A sudden thange of direc tion or wobbling of the wings means that the plane has entered the turbulent air around the thermal If the plane...

Geomagnetic Predictions

There is a source of very useful geomagnetic activity predictions available from the Ottawa Magnetic Observatory. These can be obtained easily by phoning 1- 613 -824-5595. This service is available 24 hours a day and the latest forecast is updated every Tuesday and Friday. During the Aprii 11 through 14 period, the activity of the geomagnetic field was very high. The maximum of this magnetic storm was on April 13 at 0000 to 0900 GMT. The last time the magnetic field was disturbed to such an...

Magazine

Reserve ana protect your collection for a Hfti me' Order these handsome red binders wrth gold lettering 7.50 for 1, 3 for 21 75 6 (or 42,00. iPostpart within USA please add S2.5 per orOer outside USA. i Cteck or Tioney orders only. r> o phone or Corders 73 Binders, P.O. Box 5120. Philadelphia PA 19141. * W TE AboTC 44rcM for Binder ftly.

Sulk Sales Manager

To do our part in the celebration, we're going to have a wide selection of back issues of 73 available for the taking. . .plus ham gear and parts collected by me over the last 40 years. We have to make room for a new magazine and that means I've lost my ham equipment storage rights. Pick 'em over and watch my stifled sobs as you walk off with my treasures. The town will be having a lot of special events, including a circus on the 6th, a muster on the 8th, a relatively short marathon race,...

Hj

S& omblad PROM -.k 37.50 (wth ttmfj S69.50- 6 PROW ca iy DSHA UL version 69 50 in n er 19* 50 16 bit i 0, 2 MHr clock. 2K RAM ROM Breadboard spare Excellent lor control. Bare Board S2B.5Q Full Kit S99.DD. Monitor S2fJ.00 Pov Qr Supply Kit S35.D0. Tiny Basic S30.00 3K Stale GodDou Econo irA Kit T49.Q0 16K SBtur Gotiboui Econo KlV Kit 269 00 24K Slate God boot Econo XK-24 Kit 414.00 32K Slait Godbtrol Econo W-32 Kn 537 00 16K Dyrtati RAM Kll 2S9 00 CofTtp IC ddte selector. 2 vol mailer...

Intranational Crystal Mfc Co

Code reading makes ham radio more fun A code reader can add to the fun of nam radio by allowing you to copy many signals that are too complex or too fast to decode Dy ear. you can get in on such things as news-wire service Transmissions. weather information and financial reports that are sent Dy radioteietype (RTTY)r ASCii computer language or Morse code. Some code readers only copy one or two types of signals, but the Kantronics FieJd Day 2 tm allows you to copy RTTY at 60, 67, 75 and 100 WPM....

Tec

NOTCH FILTER PERFORMANCE ADJUSTED TO 1 kHz POINT All 9 hf bands only crystals are needed for 18 and 24.5 MHz bands. Broadband design for instanr band change without tune-up or danger of damage to the final amplifier. Another Ten-Tec original. Hang AGC for smoother action. WWV reception on the 10 MHz band. Digital readout in two colors, red for rhe 5 significant places, green for the 6th digit (100 Hz), Instant recognition. Separate receiving antenna capability. Switch receiver to a common...

Kez

YAESU ELECTRONICS CORP., 6851 Walthall Way, Paramount, CA 90723 (213) 633-4007 YAESU Eastern Service Ctr., 9812 Princeton-Giendale Rd., Cincinnati, OH 45246 (513) 874-3100 Put a shack in your hand. The TR-2400 fs the Ideal hand held for 2 meters FM- It features a large LCD readout that am he read Id ilreet sunlight or In the dark, S-kHz-step PLL synthesized operation. 10-cfiiiiinel memory, scanning, and l6*button a at op-itch DTMF Put a shack in your hand. The TR-2400 fs the Ideal hand held for...

T

Our new crop of tone equipment is the freshest thing growing in the encoder decoder field today. All tones are instantly programmable by setting a dip switch no counter is required. Frequency accuracy is an astonishing . 1 Hz over all Temperature extremes. Multiple tone frequency operation is a snap since the dip switch may be remoted. Our SS-32 encode only model is programmed for all 32 CTCSS tones or all test rones, touch-tones and burst-tones. And, of course, there's no need to mention our 1...

Rapid Mobile Charger

Ine DEB-TED Rapid Mobile Chaiger is a constant voltage charger trial will charge yoLti batter tes oil a 12 Vol source in 4-6 nours. You may use me charger ai all times, tins includes transmit and receive periods It is equipped with a cigarette lighter plug on the input side and the appropriate charging plug on the output suie Models available now. for trie Kenwood TR2400 Yaesu207R Tempo Si S2. S5 and tne Wilson Mark II and IV Other models available also please call or wnie for into S34 95 NEW...

Termor

Simplicity of Operation Superior Performance What are you waiting for THIS IS THE WAY TO GO TERMINALL is a hardware and software system which converts your TRS 80* (model i or 1111 into a state of the art communicalions terminal TERMENALL works with a general purpose computer, tfl expandable, has superioi performance and is simpfe to use TERMINALL has it all' * Simplicity TERMINALL is easy to connect to your radio and easy to use Plug into your receiver headphone jack and copy Morse code....

Vanguard Labs

Hollis, NY 11423 * Covers 100 to 179.999 MHz in 1 kHz steps with thumb-wheel dial * Accuracy .00001 at II frequencies * Internal frequency modulation from 0 10 ever 100 kHz at a 1 KHz rate Spurs and noise ai least 60dB below carrier * RF output adjustable irom 5 lo 500mv across 50 ohms * Operates on i2vdc Va amp Price 329.95 plus shipping. In stock for immediate shipping Overnight delivery available at extra cost. Phone (21 )

S

Selling this equipment purchased at surplus propert ies for a profit. Once the allegations had heen confirmed, the pr Lization s completely disbanded by the Ga ernor, JT__had no idea the Goverr.cr 'vould take such drastic act tin, but assumed that ne vouici only atop members fjor.i that organiiation iron buying flris surplus property and Belling it at a profit. At the time this club was die banded by the Governor* he was severely criticized by the membership and did make several enemies at that...

Communications

5456 North Milwaukee Ave. (312) 631 -5181 (within Illinois Karl L Thurber, lr. W FX 17 Poplar Drive Millbrook At 36054 a full-size, lab-type multimeter for fans of analog operation he most common items of test equipment needed in the ham shack or home electronics workshop are rf and af signal generators, oscilloscopes, frequency counters, dummy I o ad watt meters, grid-d ip osuilators, and perhaps the primary instrument the multi-tester or multimeter. Little need be said about the utility of...

Dlnf

I have read In other maga* zines about DL7DOs proposal to eliminate our 1 useless RS and RST reporting, the reason being that everyone, especially in the contests, is giving out 59 or 599. Apparently it does not mean anything What is The proposed solution Use Q1 to Q3, where Q1 woutd mean I don't hear you Q2 I hear you 03 (I guess) I hear you too much you just broke my speaker. This apparently would save a lot of time. Really I think he is replacing something with samething. He still has two...

Forest County Pa

A micro-expedition to Forest County, Pennsylvania, will be held on the 1st and 2nd of August, 1981. The call will be WB3IQB3 and the mode is CW only. Frequencies used will be 80, 40, and 15 meters. We will operate on two bands at a time, using the bottom 50 kilohertz of the bands, Exact frequencies and bands will depend on conditions at the time. We will certainly spend some time outside the Extra-only subbands. QSL to WB3IQE, RDl Box 297, Brockway PA 15824. US stations send a stamped...

Continental Us A

La Raima. < 7141 761-3033 (213) 860-2040 BeNveen Disneyland 4 Knott's Befry Fairn 999 Howard Ave., (415) 342*5757 5 miles south on 101 from S.F Airport 5375 Kearny Villa Road (714)560-4900 hwy 163 & Clairemont Mesa Blvd 6265 Sepulveda Btvd., (213) 988-2212 San Dtego Fwy at Victory Blvd OVER-THE-COUNTER Mon. thru Sat 10AM to 5 30PM AEA AtUANCE * ALPHA- AME CO* AMPHENOL - ARRL*ASTRON - AVANT1 -BENCHER. BERKtTEK 6iR 0 - B4 W * CALLBOOK * C DE COLLIN5*C BIOOURTIS -CUSHI HAFT QaiwA >...

Call Toll Free

Call 601 333 5869 for technical mformabon, or rter repair status Afso call 601 323 5869 outside continental USA and in Mississippi 47 BOX 494, MISSISSIPPI STATE. MS 39762 Blackcat JB-40015 for continuous monitoring of your transmitting quality at low COSL The dedicated monitor Leave it in the iine and you II always know what's happening with your rig Operates from 160-10 meters. Versatile, With familiarity you1 II be able to interpret the scope patterns to determine power output, distortion,...

Kwd

IN STOCK - THE MURA CORDLESS TELEPHONE SYSTEMf J caM9 wiTh ' is wTi M JU Jm I Ing 'aaiufe' Ubjp wi fL V IAhI i-t> 1ary, ouc ayal& m ' SALE OF QUARTZ BATTERY OPERATED CLOCK MOVEMENTS' fc- K r Accu cyfll 1 mmJieaf up , U 10 4 yf.a-f. op raij > n on I alha r f H'ieC'teil hmpoFleii from l jc' ea-'16 SSlVASfti H*tchJF*fl MDHT 20 AMP REGULATED 1 VDC POWER SUPPLY -- _ vdc riy load 12.5 *dc full Ti-T wl Jui, j wndliw ham Etfliioii. Hm1 manna r dto, SSB llfwat up to , mma X .W W tlia d 'a l-orvj...

Full Price For An Meter Vertical

if you can use only 1 3 of it on 0 Only Butternut's new HFSV-lfl lees you use the entire 26-foot radiator on SO. 40, 20 and 10 meters (plus a full unloaded quarter-wavelength on IS for higher ration resistance, better efficiency and greater VSWR bandwidth than conventional mufn-rrap designs of comparabfe srze The HF5V-m uses only two high-Q L-C cfrcuih not traps J and one practically lossless Jmear decoupler for completely automatic and fo A VSWft resonance (typically Defow i.S I on 80 through...

Montgomeryville Pa

The Mid-Atlantic Amateur Radio Club will hold its annuai J B.M Hamfest on Sunday. August 9, 19811 from 9 00 am to 4 00 pm, rain or shine, at the Budco 309 Drive-In Theater, V mile north of the intersection of Rtes, 63 and 309, Montgomery-ville PA (6 miles north of the Fort Washington interchange of the Pennsylvania Turnpike). Admission is 2,50 with 1.00 additional for the first tailgate space and 75* for each additional space. Tailgate setup begins at 8 00 am. Featured will be an Alternate...

Grove

ANT-1, SC ANNER BEAM 44-95 plus 4 shipping ,,. to join a small but growing group of enthusiasts who have discovered the products, services and educational benefits avaifable within the customer services program of Grove Enterprises. Inc. Your association with us does not end with a product purchase-it really just begins,. t To order wrlle Grove Enterprises- Oept.C Brasstown. liorlh Carolina 26902 belter yet. call us toll free al 1-80& 43& -8 55 and we will rush your order to you within 24...

Code Tapes

ANY FOUR TAPES FOR 15.95 4.95 EACH 5 WPM CT730f> This is Ihe beginning tape tor people who do not know The code at att. It takes them through the 25 Letters, 10 numbers and necessary punctuation, complete with practic - every step ot the *ay using the newest blitz teaching techniques. II is almost miraculous In one hour many people Fncaudirw idsoi ien are able to master (he code. The ease of .earning gives confidence to oegmners who mrght otnerwise drop out. 6 + WPM CT7306 This is the...

Radio Telegraph Sending Devices

Add S2.00 Shipping 8i HandEing. . i - Add 2.00 Shipping & Handl mg, i Model HK-2, same as HK-1 but less base lor incorporation in youi own keyer. 16,95 Add 1.00 Shipping & Handling CC-1P shielded cable & plug for HK-1 S2,00 * For use with all electronic keyers * Heavy base with non-slip rubber feet * Paddles reversible for wide or close finger spacing How To Defend Yourself Against Radar How To Defend Yourself Agatnst Radar by Bruce Bogner and james...

Augusta Nj

The Sussex County Amateur Radio Ciub will hold its third an nual SCARC '81 hamfest on Saturday, September 12, 1981, from 8 00 am to 3 00 pm at the Sussex County Farm and Horse Show grounds, Plains Road off Rte. 206, Augusta NJ. Pre-registra-tion for outdoor fiea-markei sellers is 4.00 at the gate, 5,00, Pre-regislration for indoor Ilea-market sellers is 5.00 at the gate, 6.00. Other registration is 2,00. There will be door prizes and plenty of free parking. Talkin on 147.90 .30 and 146.52, For...

Amateur

THE PRACTICAL HANDfiOOK OF FM FCP AT01S_ 096 OS. CARDS-STYLE A -260 QSL CA DS STYLE * - WC QSL CARDS STYVE A -25O SL CARDS STYi E * ME-1 MEMORY EXPANSION BOARD FOR MM-1 KEYER 59. -_-- .w h.,,'1,.,.-.'.-.IVI . r.v.v.vri'i' -v.v. TF. jt AC-l 600 Ma. A.C. SUPPLY FOR MM-1 KEYER 14.95 AC-2 350 Ma. AX. SUPPLY FOR ALL OTHER KEYERS 9.95 SPECIFICATIONS . (COM AND YAESU

Npn Silicon Rf Power Transistor

Deiiqnetf for powtr amplifier applications in .induit . com merc and amateur ra io equipmem io 30 MHz Specified 1 2.B Voll, 30 MH Characteritrics Output Power 80 Waits Minimum Garn - 12 dB E Hit iflncy 50* d -( ned tor powf ampiptjtr application* m irxtuUnaJ. (ommental dnd amateur radio luipment to 30 VHr Spec 1 7 S Volt, 30 MHi Characterises - Output Power HO Watts Mrntmum Gam I rlB Efficiency bO * Capable of Withstanding 30 9 Luad VSWH 0 Rated POLit and qq

Power Supply Assembled And Tested

YAGI ANTENNA 4- LONG APPRO* 20 TO 23 d8 GAIN VAGI ANTENNA 4 WITH TYPE (N, BNC, SMA Connectorh hrH B i-r-ra a j fui bbibbbbbbbb b b- b-b-b-b m b b ara-a ana a aia fi(4HlfHH*IW 'H P P II I i i H i ftt'mt + + . M B kmm mi m a Pb.b . . . fWfTIB P Hl B 8 tttttt H*+ + m i I i 1 I a i-rr mi

Counter Preamp

Fl t mr urths r rretneL wrifc signal T mi IC ro l.iXV WH . S m .il I i f i r. fy m emf bv plug rt i ns loi rn rr 'j nc in JeJ G real for sniffing RF with pick up l-xip H KM1 W-i'git-OC uti - '01 1 0 1 eLeaitd p v y hi 1 1 v pp g 1, a r - 11 - 1 t Ouatai add TOP QUALITY PARTS FOR LESS

Mult I Band Broadside Pi Poles

VAC-20 40 75-SS9.50 VAC-10 L5tf0W0-----SHOO VAC-15 20tfCh-iS9,50 VAC-15 20 40 75-----SIR50 VAC-10 15,' 0- m 50 VAC-10' 15 20 40 75- 149,50 ' Helium filled for a lifetime of high efficiency f Completely adjustable to precise resonance 1 Power handling capability to 750 watts PEP ' Beautiful white 3ZM Fiberglass lower section 1 Stainless 3S11 17-7 tapered top whip section ' Very low weight. VAC-20 weighs 6.5 ounces ' Low wind drag. Holds vertical at high speed h All chrome plated polished brass...

Keep Receive Window Cu

'NOW WITH VFA A500 S229.00 (complete with accessories) Extended range UGhi and Commercial versions available * High accuracy lOAAHz timebase FuiJy tested & calibrated *(VFA) option now available. (Repeater operators and sightless hams cat for details). Remember the days we used to wonder what frequency we were on Then, wfih Colfins and Drake, frequency could be read to 1KC. Times have changed and now we say Hertz. Today with a BRIGHT counter you can be on freq to 1 Hz at HF or 10Hz at VHF...

The Great Escape Expedition

Members of the Lake County Amateur Radio Club are planning a DXpedition from the jail cell In Crown Point, Indiana, that John Dillinger fled In 1934 during his famous wooden gun escape, the final exploit of the notorious bank robber killer before he was shot to death by FBI agents in front of the Biograph Theater in Chicago. Dubbed The Great Escape DXpedition, the operation is scheduled for 1800Z August 29 to 0300 August 30. and from 14Q0Z to 2300Z August 30. Operators wilt be using the club...

The Most Todate Repeater

LISTINGS BY STATE AND COUNTRY WORLD REPEATER ATLAS BK7315 Completely updated, over 230 pages of repeater listings are Indexed fay location and frequency. More than 50 maps pinpoint 2000 repeater locations throughout the USA. Foreign listings include Europe, the Middle East. South America and Africa. 4.95.

Vehicle Call Sign Plate Weatherproof Durable Plexiglas

VOUR CALL OR NAME JN ATTRACTIVE RAISED PLEXIGLAS LETTERS (SPECIFY BLACK OR WHiTE I UP TO EIGHT WELDED ON A BLUE, WHITE. BLACK. RED OR BROWN PLEXIGLAS MOUNTING PLATE OB CH OSE HE ATTRACTIVE FLECK MOUNTING PLATE SELECT FROM RED. GREEN. GOLD. SLUE OR SILVER COLOR STD VflNl-PLATE - 9.95 FLECK PLATE. ADD 13.00 HEAVY CHROME FRAME 2.99 DELUXE CHROME FRAME S7.99 VANLPLATE COMPANY P.O. Box 136, W. Yarmouth, MA 02673 (617) 394-8595

Events

Listings tn this column are provided free of charge on a space-available basis. The following information should be included in every announce ment sponsor, event, date, time, place, city state, admission charge (if any), features, talk-in frequencies, and the name of whom to contact for further information. Announcements must be received fwo months prior to the month in which the event takes place. They should be sent directly to Editorial Offices, 73 Magazine. Pine Street, Peterborough NH...

Converters

1900 MHz to 2500 MHz DOWNCONVERTERS Intended for amateur radio use. Tunable from channel 2 thru 6, 34 dB gain 2- 5 to 3 dB noise. Warranty for 6 months Model HMR 11 Complete Receiver and Power Supply (does nor include coax) 225.00 4 foot Yagi antenna only *, * S39. 99 Downconverter Kit - PCB and parts . - 69. 95 Power Supply Kit - Box, PCB and parts 49< 99 Downconverter assembled 79.99 Power Supply assembled 59, 99 Complete Kit form 109. 99 (includes Yagi antenna and instructions) REPLACEMENT...

Coaxial Cable Sale

PG213 WM trnirialnnfl shi W mil sp c RG11 Al) TSohma 9 * ' ifi m+i spat . 27*tK RG58CU nonconlaminating 95* sfiieW mil spec I3 fft RG174U rrHnialuAUohmmii spec. iOartt. FtG-aX ftnmi 6)95 an iflio Blue J ackei 22effL FtG6U 97 SiHrtd1 white acket RG58U 80 RG58U 95 RG58AU al randed cenler 00 sh leld i Rotor cable & 22ga i iini niTri i i rm i b-i II I Ptf l 'Cable-iihlfifurn S SO 1st 100It, W.D0eachadd,l 10011

Its All A Big Microphone

Washington press credentials ought to carry warning labels like the ones on cigarette packs. It should read Danger Covering Congress or federal agencies may result in loss of perspective ' We of the Washington press corps tend to overdo it. Granted, what happens here at ihe center of the empire eventually affects your life but we probe every speech from every bureaucrat and analyze every bill even though it stands less than one in a hundred chance of becoming law. What happensasaresultof that...

Tim K

I need mint-condition ARRL Handbooks lor 1947,1952,1955, 1961, 1962, 1966, 1967, 1975, 1977, and 1979. Top Doilar Paid. Norton K. Earle 6421 Burgundy Way Las Vegas NV 89107 I am looking for parts and cards for a Hickock Cardmatic tube tester. I have a Bell System model number KS-15874-L2 serial number above 900 the mifi-tary model Js AN USM-116 and the commercial version is 1234 commercial 4, The test cards can be used with any unit. Thank you. Karl D> Burket PO Box 790 Payette ID 83661 need...

T M

Are you tired of working around all of the little obstacles that are built into your TRS-80 Ever wish that there was some way to repair those im-I perfections Well here it is The Dvnamic Device Drivers package has all of these features Programmable Key Debo unce - Your keyboard can be tuned to your typing style. Programmable Repeating Key Function--Fvery key lias a repeat function. Lowercase Modification Support You have a choice of standard or .shift-ftir-lowercase letters. (A lowercase...

Sstv

The Robot Model 800 also supports SSTV, It will send up to a 6 x 6 character message using block letters. This can be a help to contest operators who normally use a menu board to pass QSL information. By merely typing the desired information on the terminal, it will be sent via SSTV. The terminal also will send a gray scale, checkerboard, reversed black white characters, large characters, and partial frames, Cursor control is available to help with formatting your message. Home up, line feed,...

L

By communication date J Jure 13 1930, the Latent Fingerprint Section of the Federal Bureau of Investigation, Identification Divisioa, advised that there were no latent prints of value present or developed on any of the specimens submitted. On the sa e date, the Federal Bureau of Investigation Laboratory reoort advised that tool ruark examinations on the submitted items bor very linited tool marks, which were not sufficiently characteristic to determine the tool type and were of no value for...

Rom

Model I or Model III, external terminal unit Includes pc board, cabinet, ASSEMBLED & TESTED 325 Washington residents add 5 3 stilei rax P O Box 892 Marysville, Washington 98270 (206) 659-4279 S169.95 buys a terminal unit kit with the features you need most for enjoyable iRTTY. Our 3-stage active input filters, built-in AFSk and 60 rnA loop supply make the TU-170 a great buy regardless of the rig or printer you prefer, Sound interesting Call or write for details about our full line of RTTY...

CL

To enhance my HW-8 while keeping component cost at simple. I believe these goals were satisfied, and hope I've contributed in a small way to the big thrill of QRP communication. 1 8044 Keyer Data Sheet, Curtis Electro Devices, Inc., revised February 23, 1979. 2. High Sensitivity Swr Meters Popular Electronics, October, 1979. 3. The Super Transmatch, 73 Magazine, July, 1976. Photo . This top view shows the swr bridge on the left in the same box with the transmatch. The ac power supply parts are...

Bktm

BK110 7M7 BK7X0 BKIOtt CT7306 CT7W CTT3T CTT320 CT732S cnsM 73D AEA + rti SATELUTE HANDBOOK 1 lifl w,OftLD PPESS SEPviCE n QOENCJES WOPLDRAOtOTVHAP*DeOOt( IWS0 WOflLO REPEATER ATLAS 4 M0 n BACK ISSUE I 3 00 71 BACK I& SIJES 5OUR CHOICE. H2.00 73BACKJSSUES-SVOURCHOICE 8 75 73 HACK ISSUES t VOUR CHOICE

Tentec

2305 CHERRY ROAD ROCK HILL, S.C. 29730 Fig. 2. A IN4148 diode mounts on the foil side, while the470-0hm resistor mounts on component side next to 1103. Ask for Instant Software at a computer store near you. ANDERSON COMPUTERS. Hunmlllt COMPUTER CENT R TkjacalOdu COMPUTED LA NO HurttlvlMr, OLENSKV BROTHERS. INC . MOfcMe

Rjh

Build your own aircraft radios. -381 FREE CATALOG, 272-2203 i0965 s GRASS. VALLE> AVE * Quality rrvetaI enclovu w.'hardware The RX 2 100 ciownconvertt r is j statwf-the-arl microwave converter that convert* T900 2700 Mh microwave signals down to VHF. il is especially suited for Ime-oi-sighi reception ot amateur and TV tran missions and will drive either a VHF receiver or a standard television. ** tor 22S1S - 97th Avenue North xMiunnil rJjfj Corcoran, MN 55374 Odtuonal dM. 612 98-8014 This...

Jim

Tft *ac 160mA t2M J I SflmA S3.00 Api r r 2 il fr< n lypt i ir r tjioi fn. i c 1 Tor 13 O0 n , I.' vdc a 10 JO m A t T L he 11 W 5maM 3 16 He Slugs turned coil 3 lums to tor S1.00 Wiir, .rifo anj M HO i B lun 'Jfjji '. 10 S 00 10 J 0Q 10 S 00 4 12 00 4 2 00 3 S2.00 QOOO Tor CJOtkl n Cfld . '10 plug

Mj

' r J ptiii t* L kTitnr iiT- -i me Iii j J PI j 1 r 4 Haiti I . ru ir. u v, irn m.jJ , m - mir , , 1 ( L H fi- U+f nmffiL I ' I '.I IJ r I . . I tw*Cf jrr, Ii Dt t, tuig Du.l1 Tf I. r irai i -i p.- Htjg tr W f. 'L1 ' I ft , - '' _ In TrtCf ' J Jn J1. iJir DC ' I r io-fft.' i f ' j1l . II U -jfi J Lie DifliflfltUl 1 > J II l.-.r, f'lgg En For VMi Sfil Win Fi'drti (r jfflot Itter hj to iKHf -iOuPlp ftwl rftfr tjrrrfl BtF 4A'> Tti-r Hi'i e-fr, ' .Il I kJT j C bp I h.UN. Muifnl JL lu. I ijMtil...

Test Proe

View from top of circuit board. ing a project that was wire-wrapped and I needed to check a lot of connections in as short a time as possible. The tester will give you an audible indication of resistance up to around 2000 Ohms. You can test semiconductor junctions with it and the tester will let you tell the difference between just a few Ohms of resistance because different tones will be heard when testing different values of resistance. Since this continuity tester will let you measure...

Tss

( CALL NOWTOR YOlmSPECIAL SUMMER SAVINGS PRICES Prices, specs subject m change without notice CaH . residen Is ploase add sales tax Contributions in ths form oi manu crip is with drawings and of photographs are welcome and will be considered for possible publication, We can aa& ume no responsibility for loss or damage to any material. Please enclose a stamped, sell-addressed envelope with each submission. Pay-mont for tl e use of any unsolicited material will be made upon acceptance All...

Touchtone Encoder Kits

HALECD-12 3x4 twelve-character encoder utilizing ihe ICJM 7206 Intersii chip. Kit comes complete with both LED and audio-coupled outputs (speaker included). With aluminum anodized HAL ECD 16 4x4 sixteen-character encodef utilizing the I CM 7 200 Intersil chip. Kit comes complete with LED and audio-coupled outputs speaker included). With aluminum anodized

Mini Products

W itcti lis add more- lines m ihe n ar lutore KEYERS PADDLES COAX SWITCHES HEADPHONES ROTATORS 2 RIGS it AMPLIFIERS CW SS6 F1LTEPS ANTEt MAS-HF. VHP MORE NOW A FUTURE We look forward to quoting your needs. Ask -itioLiI delivery to the RIchmortdfTidewater areas 13817 BARNES SPRING ROAD Mi D LOTH IAN, VIRGINIA 3113 (& 04)744 3afi1 13817 BARNES SPRING ROAD Mi D LOTH IAN, VIRGINIA 3113 (& 04)744 3afi1

Vdc

Uoded & 75 HuFl M F M SS6 Mima wuil M H, Model K OO UHX 1W Watl Linear Amptifi* TT r- pCrw M rt - J gnedtw ATv SSBi* ru WrrtB or ta* lor out ijfni brochure t 435 NEW ENGLAND'S HAM Si ORE Stocking Distributor for Major Equipment and Accessories CLASSES ARE IN PROGRESS-INSTRUCTION FROM NO I ICE TO EXTRA. CALL TODAY FOR THE NEXT STARTING DATE (617)391 3200 206 MYSTIC AVENUE MEDFORD. MASS. 02155

Gfeew Neons

KM 11,1-. e FOR tifiii Pre-Fabricated Just Assemble. Open construction Suitable lo enclose 36'* wide by 30 deep & 72 high Shelves adjustable on 2 centers. No. 3 phne shelves and select 463 uprsghts sanded, ready for finish Write for other available sizes & options. Master Charge, Visa Money orders ana Checks accepted F.O.B. Fort Wayne (Ind residents add 4 sates tax Shipped UPS collect. _ H vJt kl1.' P c S I I 0 H dl Jj - LfH LAl.ik. Phpnp Orrtnrs * M< flln)um AD Order...

Jacksonville Fl

The Greater Jacksonville Hamfest Association will hold the ninth annual Jacksonville Hamfest and Northern Florida Section ARRL Convention on August 1-2, 19811 at the Orange Park Kennel Club, located at the intersection of I-295 and US 17 just south of Jacksonville. Advance registration is 3.50 and registration at the door is 4.00. Swap tabtes are 12,00 per table for both days (no one-day tables). All events will be held indoors and will include a full slate of programs as well as meetings of...

New Products

Two cabinets basic CT2100 plus separate KB2100 keyboard. RTTY and Morse demodulators and video circuits included in CT2100. Small keyboard size connects with one coil-cord0 for popular lap operation. Streamlined CT2100 cabinet is attractive and small may also be rack mounted. Satin finish black vinyl front panel with multicolor graphics 26 control switches, red for primary and blue for secondary controls. 16 rear panel connectors - standard phono connectors. On screen tuning indicator. LEO...

Patent Pending

Barker & Williamson, inc 10 Canoi Street Bristol. Pc 19007 Phone 2*> 5 78B 58* Sff* list of Adven,ser& on page 1U transmit receive line, if Lhis line is used. If you want to interface these lines in another manner, remember not to draw more than 1 mA from an output pin. The simplex autopatch ts compatible with normal simplex use on the same frequency Only transmissions with an access digit are responded to all other signals are ignored The following describes how to use the autopatch....

Aes Branch Storesassociate Store

Ohio 44092 28940 Euclid Avenue Phone (216) 585-7388 Ohio Wats 1-800-362-0290 Outside Ohio 1-300-321-3594 ORLANDO Florida 32803 621 Commonwealth Ave Phone (305) 894-3238 Fia, Wats 1-800 432-9424 Outside Fla. 1-800-327-1917 LAS VEGAS, Nevada 89106 1072 N. Rancho Orive Phone(702)647-3114 Pete. WA8PZA & Squeak. AD7K Outside Nev. 1-800-634 6227 ERICKSON COMMUNICATIONS CHICAGO. Illinois 60630 5456 N. Milwaukee Avenue Phone (312) 631-5181 Outside ILL. 1-800-621-5802 CRYSTALS & KITS...

Kits

MicfoconiDuter-basetf Contest Keyer hr 1 01) partial CMOS 2-Meter Synlhesizer hr 12 79) partial. 40-Meter QRP Transceiver hr 4 80) partial or complete Spiit-banc Speech Processor hr 9 79) IARLF Rx and Tx (QST 4 78 & 12 78) W1JR Broadt> ancf BaPun hr 4 79). R-X Noise Bridge hr 2 77) Memory Accu-Keyer hr 4 79) Boards only. Box 411H, Greenville, NH 03048 (603) 878-1033

Cvd Hmoo Ea

2 to 8 pF 3.5 to 11 pF 3. 5 to 13 pF 5 to 25 pF 5. 1 to 40 pF 3, 5 to 15 pF 5. 2 to 40 pF 2.5 to 6 PF CERAMIC STAND OFFS *CNP'S 3 8 x 5 8 Ferrite Beads 1 Srt long 12 1.00 Ferrite Bea< is 3 fl,f long 6 1.00 Ferrite Beads 1 16 long 12 1.00 DOOR KNOB CAPS 470 pF 15 KV Dual 500 pF 15 KV 680 pF 6 KV 800 pF 15 KV 2700 pF 40 KV 3. 99 each 5. 99 each 3, 99 each 3, 99 each 5. 99 each Check, money order, or credit card* welcome* (Master Charge and VISA only.) No personal checks or certified personal...

Meter Amplifier

1 2 Watts In, 10-16 Watts Out 59.95 V.S.W.R. Protected Can be Used for F M. & S.S.B. Led Starus Indicators Low Loss S0-239 Connectors Current Dram Less Than 2.5A at 13.6 V.D.C * Massive Heatsink Tb HAIVM functions include local time, world rime, (G.Mi.T. too) count-up end count down chronometer, dav, month, date, alarm and houriy chime. It's ideal for log-keeping, DX time conversion and 10 minute I.D. timing. The HAIVM features a high contrast Seiko display and solar ceil battery assisi....

OA

S ltC iai 'o HDirrl. 'inuIEt V4 o'O rfiOJ Hn Hh ht r t r * to 0 fi imuia d A*' -t cm IIB VAC fr& nttMjn S G ' ' 1S' - 1 -i ' GDiieraf Hticnpiian The JE215 n t Du& l Pgw Supply with i ndspeiidBni adjuntahlft ritJiifive and ru ga-imi uuiiiut vuliacf 5. A s& parate adjuitrnenl ffl* Bach ul CI -1- supplies provides til e vwf unHmftftd judications 1qi IC Ciffr nT vciltags fcpuinfmantt. Thi- fupjlly can aliL bi uted as i general all-purpose vinablt pDW r JPCfV' features * Oufp jt * h 3VD0...

Other Study Guides

20 + Wi*M CT732G Code ts what geis you when you go for the Extra class license ft is so embarrassing to panic out jjjsl because you didn't prepare yourself with this tape. Though Ihis > S only one word faster, the code groups are so difficult thai you'll almost fall asleep copying the FCC stult by corn par-son, Users report that they can11 believe how easy 20 per really is with ihis Irjntasiic one hour tape * EXTRA CLASS LICENSE STUDY GUIDE SQ10S0 Belore going fur your 1 x2 call, It pays io...

Ee Text

The resistor, R, is chosen for maximum noise output using any given 63 volt zener. Start with a value of about IK Ohm. if the variable RC components on the output have their rotation calibrated, the bridge can be used to directly measure complex impedances over the range of 160-6 meters. Transistors are 2N5129 or HFP or Radio Shack equivalents. Fig. 2. Complete basic noise bridge. The resistor, R, is chosen for maximum noise output using any given 63 volt...

For The Home

Out t& ce .er jeti yuu o er 75 channels o tele-t storidtfecify trorri eartiri- oroiting cable TV satellites HBO Snov imfl svi-per stations, swts and We don t just sell Information We Manufacture Hardware From offshore o hqs. data Hnks to hoiels and backyard installations. we wrote the book Constanily updated. our 94 Page technical information hook and catalog gives you all The facis Inexpensive dishes, feeds, telemetry software, kns and more Recommended reading by NASA, The OMice of Consumer...

Florida

CtMPitwrr AMF MICROCOMPUTER CENTER Tampa ATLANTIC SALES M.flfft, COMPUTER JUNCTION Fflfl LjuOartlA 4 COMPUTE Sf+ACK IHC , MChtormllt COMPUTER STORE. 0**< + COMPUTERS*STEM RESOURCES Otinwrt Computed WORLDS Dttnmv COMPUTERLAND Boc* Rilfn COMPUTERLAND, for LAutift'd* * COMPUTERLAND. x> n> ,ll* COMPUTERLAND. StfWlik COMPUTERLAND Tpirju COMPUTERLAND, WtH Rilr HEAT irt ELEC aOiN CENTER, Hi* ti H I S C0MPUTERMATJO . Mfibtwrr* M CflOCOM PUTE R SYST t M S l NC TA pi...

Back Issues

BACK ISSUES Comptete your colleciion many are prime collectable now, classics in the field A full collection is an Invaluable compendium of radio and elec ST0000 Single back issue before July 19B0 3.00 ST0250 Single back Jssue after July 1980 3.50 5T050Q 5 your ST2500 25 our ST2501-25 yout FREE BACK ISSUE CATALOGS are yours lOf ihe asking. specify 73 Magazine Kiiobaua Microcomputing and'or 80 Microcomputing back issue catalog w en you send your name and address to us on a posicaro

Au

HJiJial 10 i 1 00 + i vdc inpijf prod 9 vdc i - -de proJuri- i i -dr r 35ma f i > 5 0 Tjfr Pet I* 00 I 2G Tym Tmi t M Cnromic IF Fillers Mini ceramic liners 7 kH a A J& & kHz Si SOea > 5 0 Tjfr Pet I* 00 I 2G Tym Tmi t M Waki hi h r sofijtiori audio meaaLrrfnpnts gr i for musJc ir> strumflnt tuning Pi tones etc Multiplies ludio UP in frequency selectable *i0 ot K100. gives 01 HZ rcjsolulron witti i sec gate time1 High sensitjuty of 25 m* 1 meg input z...

Satellite Tv

Tunable audio demod, video demod & AFC IF Unit with Filter, 54DB gain. 70 MHZ, 30 MHZ band pass 80.00 10' Fiberglass Dish 900,00 Complete units available. For information call 613 Washington Avenue Iowa Falls, Iowa 50126 Tfl fit) lit rrflOflrTirh 'jl Tai> dy C km unique battery eliminator4 KAMDJ-TEK Regulator allows constant handheld operation from auto DC or base supply wirh no na-cad drain and WITHOUT RADIO MODIFICATION Model I loom IC2A T K TR 2400 Y FT-207Rr T Simple mod for Temp 24r95...

Quarter Mile Wireless Microphone

Qt FCC appitiv fl oaial dniT-ollad Airsiesi. miVe fi iBnniH'iir 411 bailiry operalatf. Electral wJdii- FACTORY SURPLUS VHF UHF -TWIN VAftACTOR TUNERS Admirai No NC i 1*3-1 n RA H NEWl lor tJ lh Pfl it ' pjir nA ul& itiiinicai iy 1 up 'H T r 'FflONT SN OS A hiLrd to ftn(J iiQTi 1 a EcnG ti-_-n r prirtl No. MlVtSW DUMPING NORELCO ENDLESS LOOP CASSETTES' liTiLnr aib to tlrvd j' my prFCfll 3 iftlrrul -No. 3S1VA44S ftmlnul** No. 51 VAtKW

Put Your Own System Together

TXA5 ATV Exciter contains video modulator and xtal on 434 or 439.25 mH*. All modules wired and tested S 89 ppd PA 5 10 Watt Linear matches exciter for good color and sound. This and all modules run on 13.8 vdc 89 pdd TV02 Oownconverter tunes 420 to 450 mHz. Outputs TV ch 2 oi 3. Contains low norse MRr901 preamp. , . + . 55 ppd PACKAGE SPECIAL all tour modules S249 ppd PACKAGE SPECIAL all tour modules S249 ppd FMA5 Audio Subcamer adds standard TV sound to t e picture 29 ppd SEND SELF AODRESSED...

Berea Oh

The 7th annua* Cleveland hamfest will be held on Sunday, September 27, 1981, al the Cuyahoga County Fairgrounds, Berea OH, from 0800 to 1500, Ex-hibitors1 8-foot spaces are 25,00 (which includes a table). Also, power is available if requested in advance. For more information, write Cleveland Hamfest Association, Box 27211, Cleveland OH 44127. The Adrian Amateur Radio Club will hold its hamfest on September 27, 1981, at the Lenawee County Fairgrounds, Adrian Ml, from 8 00 am to 3 00 pm. There...

We Regret We No Longer Accept Bank Cards

PlEASE SEND POSTAL MONEY ORDER CERTIFIED CHECK CASHIER S CHECK OR M NE V ORDER CESSUBJE O CHANGE WiTHOUT NOTICE ALL RETURN ORDERS ARE SUBJECT TO PRKW APPROVAL BY M A AGE MEN LL CHECKS ATJD MONEY ORDERS IN US u DS GNL* WE WILL ACCtPi COD ORDERS FOP S25 0> OR OvtH ADD 2 50 FOR COD CHARGE LEASE INCLUDE WSD MINIMUM FOR SHIPPING QH call FOP CHARGES WE ALSO AHE LOOM ML v OR NEW AND USED TUBES TEST EQUIPMLN COM PONE NETS ETC

Wait Jth Heceiver To Turn

RECEIVER STILL ON HECSIVEH OP , SEHD ID SEE I FATCH WAS REQUESTED ID data table starts at location 0068 and can be programmed using the data in Table 1 A flowchart of I he autopatch program is shown in Fig. 1. Table 2 gives a complete list of all connections to and from theKIM-1. All outputs are a logic 1 when on, all inputs are a logic 0 when on. All input connections should be logic levels and connected to the input pins The touchtone decoders can be tuned to the proper tones as fisted in...

Ham Help

I'm interested in any information on converting an RCA RT-175 PRC-9 27-38,9-MH2 receiver transmitter. My particular interest is in power supplies and schematic information on these radios. Thank you for your trouble. I am interested In obtaining a schematic fora Precision Signal Generator, series E-200 C, manufactured by Precision Apparatus Co., Inc., Eimhurst, LL New York, serial number 34845.1 would appreciate any help that anyone can give me. Thanks. A. B. Wells WASCOH PO Box 50 Tunica LA...

Mkb

* Complete set of alphanumeric punctuation, and special function keys CQ CB KN.SK.AR AS.BT * 500 character text buffer with BREAK feature * 10 reprogrammable 4Qcharacter message memories * 199 WPM. Weight i Interchar. space, Random Code * Built-in 110 VAC power supply * Buffer Memory ful neas indicators * I year warranty on parts and labor * Attractive anodized brushed aluminum and gray wrinkle finish case, only 13.3 x 9.4 x 3.5 in, * RTTY ASCII option includes Brag Tape interface. CW IDs QBF...

Model

MODEL PL F Improve* vgna's as *eit miOf and spunou) r i (iCKt of mosi 'ece< ve'S Dire i *iTch-no fo ie' tt* pframp includes c.-*' supp '-AC *(prd A tested W M MODEL PLF JE -*0 VAC WM H Oiwwiwn lAT.fS MOOEl. PT 2 for Transceiver use CcOinupuMt lun.iia'p From 6 10 > 60 meters Ftalurpj cIlmI gate FET irjnsislof ampl't'ff r,it MEiprovBCf fCCE er liBOfiiliw d IrtOlfif Ihgurn Hitqui+cs no iranscenver m< rfiln aliens and can hjn die up 340W Transceiver ouiput u V CGQ Hi MODEL PI 2E 2*0 VAC, 50...

Mhz

You will not experience aggravating deviation in SWR with changes in weather The impedance matching network is weather sealed and designed for maximum legal power. The insulating materia offers superb strength and dielectric properties plus excellent long-term uhra-vioiet resistance. All . . * 1 -I-l I I _l _l ' mounting hardware is stainless steel. The decoupling cones and radiating elements are made of corrosion resistant aluminum alloys. The aerodynamic cones are the onfy appreciable wind...