This is a limited offer

C& A Electronic Enterprises A r a Distributors of Commercial and Amateur Radio Equipment Quotes Oft All Your Amateur Needs 22010 S. Wilmington Ave., Suite 105 COll Carson, CA 90745 Oaa < 9 (213) 834-5868 (California residents) O00*42IMZZSO FOR OUR TOLL FREE NUMBER fOut of California)

Communica Tions Specialists

Orange, CA 92667 (800) 85 -0547. Ca 'forrua residents use < 714 998-3021 TS-1 Sub-Audible Encoder-Decoder * Microminiature in size.V25 x 2 0 x .65 Encodes and decodes simultaneously 59.95 complete With K-1 element. TS-1JR Sub-Audible Encoder-Decoder Microminiature version of the TS-1 measuring just 1.0' x 125 * 65 for handheld untts * 79.95 complete with IM element ME-3 Sub-Audible Encoder * Microminiature in size, measures 45 x 11 x 6 Instant start-up * 29.95 complete...

Vfx

Of the fundamentals described really changes. Some new elements are introduced, of course The wire pair is now a transmission line with a characteristic called impedance, and a time element is introduced. That is, power cannot instantaneously go from the source now a transmitter) to the load (the antenna). This time fat tor, of course, is very short, but, nonetheless, it does exist. That is why transmission lines have, besides impedance, a characteristic called velocity of propagation Sor one...

Gold Plated Card Edge Connectors

25 pins 3,49 ea 10y 30.00 30 pins 3.96 ea 10 32,00 50 pins 5.43 ea 10JS45.00 15 pins 1,55 ea 10 12,50 22 pins 2.08 ea 10 17.00 43 pins 3.66 ea 10 30.00 AH ma teriai guara n teed * it fo t a n y r ea son you are not sat is fi ed, our products may be returned with in W da y s for a fuii re fun d fiess sh ippin g). Ptea s e add 3 1 ERMS tor shipping and handling on ait orders. Additional 5 charge for shipping any item over 5 ibs. COD's accepted tor orders totaling 50.00or more AH orders shipped...

Ah

Commercial Crade Units Designed tor xireme Environmenfs -30 ro +6fi C equipment assembled Si tested. For 2M & 220 MHz, SCT 110 BOARD > Wide dynamic range Reduces overload, 'desense', and IM > Sens. 0.3 uV 2D dB l Typ. > Sei 6dS 6,5 KH*. 9Od0 30KHz. (o iCkjB w opl. B Pole FltT.) 10 Pole Flu Avail Exc. audio quality Fast sgueloht 125.00 wtttal. a Pol e Fl tr (Highly recommended.) 115,00 SCR100 Receiver Assembly SCR100 mourned in shielded housing Same as used on SCR1000 Completely asmbld....

For More Information

California Residents, Call Collect (714) 565-3402 1C AMERICAN EXPRESS * CHECK - MONEY ORDER CO 4 RONSON ROAD, G, SAN DIEGO, CA 92111 The age of tone control has come to Amateur Radio, What better way to utilize our ever diminishing resource of frequency spectrum Sub-audible tone control allows several repeaters to share the same channel with minimal geographic separation It allows protection from interrnod and interference for repeaters, remote base stations, and autopatches. It even allows...

Equipment

RF AND DIGITAL TEST EQUIPMENT YOU CAN BUILD BK1044 Rf burst function, square wave generators, variable length pulse generators 100 kHz marker i-f and rf sweep generators, audio osc, af rf signal injector, 146 MHz synthesizer, digital readouts for counters, several counters, prescaler, microwave meter, etc. 252 pages. 5,95 VOL. I COMPONENT TESTERS LB7359 how to build transistor testers (8), diode testers (3). IC testers (3), voltmeters and VTVMs (9) ohmmeters (8 different kinds), inductance...

Pms Curhemt

If one now feels comfortable about the basic idea of a standing wave, one can accept the information presented in Fig. 7. Instead of dealing with instantaneous values of a current wave, these figures represent the rms current, or the current that one would read aiong the line with a regular rf ammeter. In the case of Fig 7(a), the current is the same at any point along the line since the system is matched throughout and there is no reflected current wave In Fig, 7(b), where a mismatch exists,...

M

20 + WPM CT7320 Code is what gels you when, you go for lne Efctia class fleers* I is so embar rasing to > ar - oui Just because you didn I prepare yourself wijn this 'ape Though inis Is only one word faster, the code groups are so difficult you'll almost Tali asleep copying the FCC stuff Dy com parser Users repon nat the> can't beJievd ho* easy 20 per 'eatly ts witn this fantastic onv hour tape 2S+ WPM CT7325-This ts the tape for that small group of over achieving hams who wouldn't be...

Video Terminal

Hand alone deo ter-minaJ card Pi-Qu ires only an ASCII keyboard and TV sel to become a cofnp*et+.j ierminai unil Two urult available common lealures are ungi* 5v uppry, XTAL continued sync and baud rates (to 9600) tompteTe computer and keyboard control of turior Panty error Control and display Accepts and generates senai ASCII plus parallel keyboard input The 3216 is 32 char by t6 flrm 2 pages memory dump feature The 64TG ts 64 char by T6 lines with scroUtng, upper...

Meet Me In St Louis

Louis for the big hamfest on March 31st. HI be talking about amateur radio . . . the good things and the bad. I'll be answering questions on just about anything, in addition to that, as at Atlanta, I'll be talking to microcomputer hobbyists about the many ways of making money in this new field- I II try to give some perspective on what has happened and what I see as coming in both fields. This will be my first trip to St. Louis, so I'm looking forward to it...

Mk Mini Mobile Clock

4HVE TjO VEJ A . te Ji ZX U> L- 'IPL- C ME Iiit OUHD Jr A ' TtAH I RA IN OS A PHASUH GUN HOW ABOUT i UNGUES, WHISTLE, I PENS t irtFKlNG Dca AND OftE H SO D EFFECTS S-JU Y J CAM dlTH O fl PKK2Wrt BLt DJ4 EFF rcs rr USES at i ra s w - iVTftSEEH OOP, afWT7 AM> SUHOff CIBCUITfit- 5 TO 12VDC 15 SENSED TO GIVE APPftS. MATT J AUDIO OTIR T. * PfiCWK -. duh-T , A T3 AJ iieraXTEJ AL3G ifTTH A OUST ID PROGRAM JSJS. JSE HU IHA .HAT ON TO sent lumu I . I . I II- I I-I ','fl I-11111 I .1, t P , I- I , J...

Paint Ripoff

This note is to notify your readers of a new rip-off. It's called Paint falling off your car due to rf This BS is being passed around to auto deafer-ships and auto paint shops that rf makes paint fall off cars in the area of the antenna, tn my case, my new 78 car's trunk lid is discolored and the paint is chipping off The dealer says that my radios are making it do that and that they are not going to fix i l. I have talked to several other radio ops and they were told the same thing about the...

SMO srrSCi

114 flPsder Service sei pj ge 211 Again, Yaesu, THE RADIO, takes a giant step forward with their computer age 4-bit Central Processor Unit controlling the Phase Locked Loop. It allows selection of 800 PLL channels with touch button station selection built into the optional keyboard mike . . . PLUS auto- matic scan, up or down across the entire 2 meter band . . . PLUS four memory channels . . . PLUS optional tone squelch encoding . . . PLUS tone burst . . . PLUS high SWR and reverse voltage...

S

FINALLY A flF PROSE that lets you connect into your coax cable for frequency measurements and modulation waveform checks directly from the transmitter. JUST CONNECT THE CoaxProbe* into your transmission line and plug the output into the frequency counter or oscilloscope. Insertion loss is less than .2db so you can leave it in while you operate. A NECESSITY IN ANY WELL-ORGANIZED HAM SHACK, the CoaxProbe* eliminates jerry-rigging' and hassles when tapping into the coax line is desired.

Sad

High Speed Op Amp 50Wm5 m01P High Speed Op Amp 60V ms DIP Quad Comparator Single or Dual Supply y2W Audio Power Amplifier B 22V Tone Decoder (PLL) ,D1Hzto & 001iHz Tone Decoder (PLL) .Ol Hi to 500 kHz Precision Vnllage Regulator 2-37V DIP Dual 741 Cnmpensaied Dp Amp Qua 512 Stage (1024) Audio Delay Line Bucket Brigade Appf. Data included Function Generator with applies data Long-Rangfi Precision Timer as to days 1 YEAR TIMER Kit 2 XR2242'sand App c. Note Quad Comparator +5V or 2 to 36VDC...

Yaesu Yaesu

CORP., 15954 Downey Ave., Paramount, CA 90723 (213) 633-4007 Eastern Service Ctr.,9812 Princeton-Glendate Rd.,Cincinnati, OH 45246 Rod Hatten WA7NEV Road Runner Ranch > 0 Box 73 Tombstone A Z 85638 Programming a Microcomputer - 6502, Caxton C, Foster Addison Wesley Publish rng CoReading MA 01867T 230 pages. 6 x 9 softcover. 9.95. The Littte Book of BASIC Style. John M, Nevison, Addison-Wesley Publishing Co., Reading MA 01667. 150 pages. 6 x 9rr soMcover, S5.95. Although the instruction...

Trs Owners

Position with grounding of all unused positions Cross afk (measured at 30 MHz) is -45db between adjacent outlets and 60 db between alternate outlets Crosstalk 45db (measured at 30 MH z) Dimensions high, 5 wide. 3 deep 023 Available at your B& W deafer Barker Williamson, Inc. 10 Canal Si Bristol Pfl 19007 Telephone 708-5501

Complete Kits

HAL300A 7-DIGIT COUNTER WITH FREQUENCY RANGE OF ZERO TO 300 MHz. FEATURES TWO INPUTS ONE FOR LOW FREQUENCY AND ONE FOR HIGH FREQUENCY AUTOM ATtGZERO SUPPRESSION. TIME BASE 1.0 SEC OR .1 SEC GATE WITH OPTIONAL 10 SEC GATE AVAILABLE. ACCURACY + .001 . UTILIZES 10-MHz CRYSTAL 5 PPM. COMPLETE HAL'SOA 8-QIGlT COUNTER WITH FREQUENCY RANGE OF ZERO TO 50 MHz OR BETTER. AUTOMATIC DECIMAL POINT, ZERO SUPPRESSION UPON DEMAND. FEATURES TWO INPUTS ONE FOR LOW FREQUENCY INPUT. AND QNE ON PANEL FOR USE WtTH...

All Orders Shipped Prepaid No Minimum Cod Orders Accepted All Orders Shipped Same

OPEN ACCOUNTS INVITED - California Residents add 6 Sales Tax. PRICES SUBJECT TO CHANGE WITHOUT NOTICE. We accept American Express Visa BankAmericard Master Charge Continuously Variable from 2V to over 15V Electronic Current Limiting at 300mA Fiberglass PC Board Mounts All Components Makes a Great Bench or Lab Power Supply Includes All Components except Case and Meters

Alarm Clock

6 Bi-i S LEG Dispfayfi On Boam AC Translormer * tl' h'iur f jfrnal ( 24 Hour Aiarrn * Snooze Featu 1- * Elapsed Timer Timer Tealure makes this Popular in Broadcast SUtlons Hi a r. ural for cart, boats and campers *hen used with ophonal crystal time base. Fits our standard cabinet S19 95 CrySt 1.1 Inne base when purchased wilti clock S2 95 Uses 0 5 Display LED 5314 CEock Chip. Freeze nre lot ujcuriil i't Ills our landard cahrnel ONlV 1H95

Hus

Connection of B-delay in a power suppfy. Totally Broad-banded. All Solid State CW SSB 104 A Transceiver Heathkit Amateur Radio equipment has long been the favorite of Hams the world over because it provides the performance, specifications, dependability and long-term reliability that Hams are looking for* It should. It's designed by Hams, for Hams. For more than 25 years, Heath has been making fine Amateur Radio equipment. It's no surprise that Hams have come to expect Heath's...

Info

Our kit includes DIP shunts, 250 ns chips for 4 MHz operation, and 1 year guarantee. Upgrades 4K TRS-80 to 16K or populates Memory Expansion Module our novice level instructions show you how. Also suitable for APPLE computers. FREE CATALOGUE No one ever said our llyor has a great plot, but what a cast of characters Linear , CMOS, low power Scholtky TTL. standard TTL, specials, music kit , power supplies, and much more cavorl in glorious black and while) on 40 pages of the cheapest paper we...

Amid

The 1979 Spirit of Ballooning Fiesta will be held on February 8-11, 1979, in Madison, Wisconsin. This is a national convention of hot-air balloonists. On the 8th and 9th, 10 balloons will take off each afternoon. On the 10th and 11th, eighty balloons are scheduled to lift off. Amateurs interested in providing communications should contact Clyde Downing W9HSY, PO Box 3403, Madison Wl 53704, (608J-244-4744, or contact him on the Madison 16 76 two meter machine. Please provide days and type of...

Vhf Series

Antenna gain and front to back ratio are well rm prove d when two elements are driven at ome time with phase difference comp a hi o to a single driven eltwent such as a conventional quadom vagi the so 22 provides the owner with such Ff atufles simple assembly and light weight antenna gain and front to back ratio are well rm prove d when two elements are driven at ome time with phase difference comp a hi o to a single driven eltwent such as a conventional quadom vagi the so 22 provides the owner...

New Lower Price

Efficient airwound indue- Antenna matching capacitor. 208 pf. 300 and 30 watts, and RF watts in tor gives more watts out capacitor. 208 pf. 1000 volt spacing. Pull for SWR. 2 ranges. and less losses. 1000 volt spacing. ANTENNA SWITCH lets you select 2 coax lines direct or thru tuner, wire balanced line, dummy load. M52 Order any product from MF J and try it. If not delighted, return within 30 days for a prompt refund (less shipping). Order today. Money back if not delighted. One year...

Control S Ystem

Repeafer contro system interface. part will be deciding how to interface a particular repeater to the system. The entire system can be constructed in one week (fulltime) by a proficient builder. Do not shy away from the project if you have no prior experience with microprocessors The black box approach is utilized, and detailed knowledge of the inner workings of microprocessors is not required. Total cost for the system is dependent upon how much peripheral equipment is avaiiable. The...

O

The 2-pole 6-positton non-shorting function switch may be mounted on the same PC board as the chip. The LED display and the chip PC arc mounted back to back with a Vili spacer between them (see drawings for details). Locate the positions on the back of the display that correspond to the positions on the template for the main board (with the chip), Thread the spacers for 4-40 screws, and use Super GlueTiy (or its equivalent) to bond them in position. I also used Super Glue to secure all slide...

Rxs

Fun to play around with and tinker in and modify than these. They are very easy to work on, are laid out well, and come apart quickly. The first two batches of Cleggs probably sparked the biggest antenna building boom Omaha has ever seen. The two amateur stores had nothing and the only antennas available for 220 were from the local Larsen rep, and they were for mobile only. For the base antennas, most built 5 8-wave or V* wave antennas, and a few cut down Ringo Rangers to the proper dimensions....

T

Referred to as radiation resistance and can be found in antenna manuals for the usual types of antennas. For a ViA dipole antenna, it might be on the order of 60 Ohms. So tf the resistance losses in our matching system are just a few Ohms, essentially all of the power will be dissipated in the radiation resistance Now, if we take that 10 meter 1 i A dipole and try to operate it on 80 or 160 meters, the radiation resistance falls to around one Ohm or less. So, guess where all the power is going...

Antennas

73 DIPOLE AND LONG-WIRE ANTENNAS BK1016 by Edward M. Noll W3FQJ. This is the first collection of virtually every type of wire antenna used by amateurs. Includes dimensions, con* figurations, and detailed construction data for 73 different antenna types. Appendices describe the construction of noise bridges, line tuners, and data on measuring resonant frequency, velocity factor, and swr 5,50.* 73 VERTICAL, BEAM AND TRIANGLE ANTENNAS BK1069 by Edward M, Noll W3FQJ. Describes 73 different...

Headquarters

Great foi OSCAR, SS& , FM, A TV, Over 10,000 in use throughoul the warfd on alt type of receivers, Linear Converter for SSB, CW, FM, etc., 2W p.e*p, output with 1 MW of drive Use low power tap on exciter or attenuator pad Easy to align With built-in test poinH Delujce vhf modei for appMcations where space permits * 1-1 2 x 311 Models avail to cover any 4 MHz band in the 26-23Q MHz range 12 Vdc 2 stages Ideal for OSCAR *20 db gain Diode transient projection Easily tunabfe 2 S 32MHz I 44- 1...

Car Clock

Ofll* 5 older connection* Heft* a sup* ' ItKiKrng 3nd accural* auto c oO Ahich < s a s ap To build and unStaU C'ack movement is completely assembled you only stHder 3 *.res and swttcnes rake* about i5 m.nutes1 D'spL is pngru gra*n with automatic tightness tontroJ pnolociw- as urs* you of a hrghty fesdabte flispia* d-ly < 3* rnqht Comes a saltn innts an-orijjert aluminum 1 35e Piich can tie al ac ed 5 dCerent using 2 sided Tape Choice ol sji f black or gold case 1 siwtiM DC 3...

1

Fig. 3, Recommended power supply for LED operation. (common), the LED display must be of the common cathode configuration, Lay out the circuits on graph paper, full scale, 10 lines to the inch, making a template. The template is then taped to the copper side of the PC board stock and each hole point lightly punched through the template. Remove the template and clean the copper with scouring powder and or a steel wool soap pad, rinsing Display mode Display mode Display mode Timebase select...

Restore

PRiNT HEX(030AOAOAOAOAOA0A0A) READ M IF STR(M . 1, 3> < > ***THEN 490 RESTORE 57 GOTO 410 M LEN(M ) FOR J - 1 TO M A STR< M& J*i) A VAL(A ) IF ABS(A-65)< 25THEN 660 IF ABS(A 109.5)< 12.5THEN 640 A GOTO 940 A A-32 C C (A-38) FOR l 1TO LEN(CS) CONVERT STR(C It1)TO C ON C -h 1 GOTO 790,840 Clear screen home cursor Reset data Center display Read data line Test for end Test for uppercase Test for lowercase strings, but the method shown suits my equipment and is efficient, The next...

Instructions

To adjust, remove a screw on each side and remove the cover. As viewed from the rear, left to right, there are 6 switches as follows (Red toggle 2 (Green toggle) 3 Slide switch 4 Slide switch 5 Slide switch Set hours month Set minutes day Inhibit run Spare Alarm select UP alarm 2, DOWN alarm 1 Display format UP 24 hours, DOWN 12 hours Note In 12-hour modet pm is indicated when 3 bars appear in the first digit position. 2. On initial light-off, all time functions will read 0 00, colon on or off,...

Or

Power supply schematic for burglar alarm, Your car will always start, and you can operate all you like. Harry J. Miller 991 42nd Street Sarasota FL 33580 If you'd like to install a second battery in your car to operate your radio, CB unit, ham setup, etc., and not worry about having enough current to operate your starter, use the device shown in Fig. 1. Your car's alternator will charge both batteries, but operating your radio gear too long will only discharge one, leaving the regular...

Power Supply Kit Ps

MVill * vjr-cap Oted* H ptd Nuiti 5.1 Furu u F urt c 4Bf INiW Hi- 'I Fri'l Ami I ' w.iir . I i on ' TO- cw iihrtpt j- u CWW irtWA lNJ mo ptf ptv K frtt* JW 10ov A 50 U - i -T-w iiwAHrtsa flL TO Hfl SS* H fir .I rhi'd > laiilwcwd CHI Im me Zulu I If I- InClLld JA u y II Ml II hN -i .1.1,1 bLJ k parmi ButLpr linn jitlMV (i> rt nd lin nhQiililHitl Shorl Clrajil fin m 1 , S-, i fldiiuir.lli f.irr H Limi nq a jtUi d KkJifiiH tn+ i. ifuty )r A ru- h-Jl In J-iaembIe (hpl picre-lnni iQ Wr n iw i...

Mpcioooc

Multipath Correction In Band Diversity & AFSK Tone Keyer Standard features include CONTINUOUSLY tuneable Mark and Space channels (1000 Hz to 3200 Hz), Dual Mode (MARK or FSK) Autostart and internal high level neutral loop keyer (20 to 60 ml). Both EIA and MIL FSK outputs are provided for direct interface to microprocessor and video terminal peripherals. Max power for the Extends weak signal range Base or mobile use What a combination' Weslcom's new 2-meter, 90 watt linear ampHli& f,...

Microprocessor Components

13 & -BH IniwLGi lput U2fi larily IrHHiMf.i ConUDl 0l lifefli& ial ui Dsrrt' 6224 Ctwi tfen f tDriO im S32H But Brlvur D2 fl SyMflni C nirn r-Rus )nvi i 333S SysfRin Connor H 5l Prou ESfflni 1 D USAfiT 5253 Prog. IrlErvHl Kim i B2 t proa Pindh .IO PP 9 57 Proa. DMA Concrrt 3259 FV q lul rrgm Contml --6BD0. flfltt support otyices - MQfjttftCP MPU rilfi Clouk sud Rim yCSSiDAPI L j fcst SEahc Ham MCifi - ftrttf UiCur. Aifapr iMCGa ill pr rity Inltuupl Oirlro'ki MCS06C iyncllrryiniifi Corum...

Mf J

MISSISSIPPI STATE, MISSISSIPPI 39762 Only MFJ gives you this MFJ-941B Versa Tuner II with ail these features at this price A SWR antf dual range wattmeter (300 and 30 watts full scale) lets you measure RF power output tor srmpJitted tuning. An antenna switch lets you select 2 coax lines direct or thru tuner, random wire balanced line, and tuner bypass for dummy load. A new efficient airwound inductor (12 positions) gives you less losses than a tapped toroid for more watts out. A 1 4 balun for...

Tm Dd

R---- i n* m' i - - i - CAL N *H ft, - - -k 'i nota COMFII *jTtin-i 'M W * wrt m --' v Ifbif Y-i prJ* 'il - - H*.'* i* - , .-in t* T-' rfl * HQMI duuiriMf ill - > . -hiM TT'.iV -T-IUElHl ' '' F V Htolf H- , nn-L J-I J I- ldntiwn Tt- i -r ir ngf *Dciudnl 'rMlClir- ir FlJ-narJ Tup VV-il 111 miKit *MJihJ iFC-*rl 'Hnjm

Over Brands In Stock

KENWOOD SWAN KDK DENTRON MOSLEY WILSON YAESU DRAKE ARSEN BENCHER PIPO BEARCAT B & W DATONG ICOM PANASONIC ARRL PUBLICATIONS* ALLIANCE* MFJ CUSHCRAFT* TR AC MICROLOG CDE FINCO DSI DAYBURN INSULATORS BIRD ASTATIC HAM KEY REGENCY HUSTLER*SAXTON*TEN TEC*AMECO AMCOMM CALL BOOK KLM TEMPO ROHN BUTTERNUT Plus Many More Gef on our used equipment mailing list The besi a ou> ances anywhere We buy good used SSB gear Prices of all major manufacturers COMPLETE RADIO SERVICE SHOP * Fast Efficient Service...

Sst T

Mdlches 52 ohm coax lo rhe lower importance a mobile whip or vertical Imposition switch with Laps spread between 3 arid 52 ohms. Broadband from 1-30 Mhz. Will work with virkiiiUy any ransceivir 300 watt ouiput power capacity, 0-23 con nectOf Fordid inductor for si 23 * F x 2-1 ,4.

Accessories

IOPTO-aOOO 1A OPT08000 y AK l flrC MG attenuator X1. X10 X10Q (avoids false Kit Form S279.9S N J CAD Ratify Pack S 19.95 P-102 H1-Z.2X . AP- 8015 UHF Counter Preamp 20 600 MHz 15-50 DB Gain (Not Shown) 49.95 Kit 39.95 QPTQ-70G0 10 Hi to 600 MHz MINIATURE COUNTER XTAL (TCXO) Time Base 08PPM 'C Aluminum Case * Hl-Z & 50 Ohm inputs 1 Sec. & 1 10 Stic. Gate times * Auto Dec. Pt. Built-in Prescaler and Preamps Standard M OPTO-7000 OPTO-7000K *AC-70 *NI-CAL> 70 if TCXO-70 Rubber Duck RF...

Transmitter

Sion of the control system could very well be that the system is too complicated for the resultant benefits. In fact, the opposite is true. The system is indeed much more complicated than what is normally encountered in similar applications. However, the operations it can perfofm are much greater than would be found were the benefits only proportionate to the system complexity. With an intelligent controller, functions can be done which could not possibly be done otherwise with a reasonable...

W

K E WT M 1 1 M-J The first West Coast dealership for these unique antennae. Array of 8 K2RIW 19s used by WB6NMT on 432 MHz EME Louis QSOed W1JR 21 October 78 with this array to become the first amateur on FOUR BANDS EME(50, 144 220 also) and at 4 bands were made only with home-to-home GSOs The 8 RIW array did the job in just under two months of work for the entire system Much faster than had hoped for .1' (This configuration also included 8-10 element Yagisfor 144 MHzEME)

Bblta

Features 3 4 dB gain over wave length antenna, 200W FM power rating 52 high, trunk lip mount, 1 1 1 SWR at resonance, sturdy stainless steel irnpacl spring RM 10 resonator 400 PEP 6.95 RM 15 resonator 400 PEP 7.95 RM 20 resonator 400 PEP 8.95 RM 40 resonator 400 PEP 14.95 RM 75 resonator 400 PEP 16.95 RM 80 resonator 400 PEP 17.95 BM-1 bumper mount 15.95 RSS-2 resonator spring 5,95 QD-1 quick disconnect 16.95 L-14-144 feediine 144 4,95 L-i 4-240 feed line 240' 6,95 SSM-2 deck or tender mount...

Edge Card

Cinch Jonns 10 20 Pin . 156 Spacing PC Mounl a& c Burndy 22J44 Pins 156 spac ing PC Mourn S1.40each 16 Pin. Low Probte 5ofc f T j 201 Ik 19 pi.5l.in jlt'd Heig- n SoiJeT Taa 2U ft* 21 ftn Lo* Tftt> GOLD GOc S5( Corp, Hfiflti., 322 Ist Ave Settle, Wash. 06 662 5025 LINE PRINTER HAMMER DRIVER BOARO Each board con tains appfox. i3 each dMJEGOQ Silicon Darlington NPN hte 750. i.iiAj.' Aboul S130.00 woTtti. over 100 1N4001 diod& s, plus support chips. The whole package is IURRY WE DON'T...

Amp Metal Silicon Cylinder Rectifiers

CJppp iad Oriar ht Cal Ho IH * AIIPI Ippdi pod vtfltafi Drdor bt c*1. No, 20 If idif HHidortof. Tirmt Add Postage Htsd Sei 30 Pbano (617 245-3828 RatiII 16 is del Carmine st MINtmUM ORDER S3 w ' fiflj. MA jumbo tapes cldud7 micro SINGLE P1H red micro TELLOW jumbo red jumbo taper red micro red 1umho res clear

For Further Information

Persona Radio Division, Safety and Special Radio Services Bureau, 203-634-6620, SUPPLEMENTARY INFORMATION Ses attached document. In the matter of the administration of telegraphy examinations to handicapped applicants for operator licenses in the Amateur Radio Service, Gen Docket No, 78-250.1 1. On August 24. 197& . the Commission released a Notice of Inquiry into the administration of teJeeraphy ex ami nations to handicapped applicants for operator licenses in the...

Jonestown

We believe that radio broadcasts were made from Guyana to San Francisco on the day before and the day that Congressman Leo Ryan was killed In Guyana. Our office would appreciate your magazine printing a request for any ham radio operator who had contact with the People s Temple radio on November 17 and or November 18, 1978, to contact the San Francisco District Attorney's Office at either (4l5> -553-l505 or (415)-553-1054 (call collect). Douglas N. Keener Investigator District Attorney's...

Crystal Sockets

HOLDS a HC25U S 59 Single HC25U 29 144 MHZ 10 WaMS RF Transistor 2N5590 S5.50 ea. Tunable 420 MHz Fast Scan TV Converter Receive Fast Scan Amateur TV in the 420 to 450 MHz Bana A'ln any TV set io* noise nign ga r ri Arrp with varan tuned input and outputs Bui t,r AC suppf> Comes n Aq ione wa'nut 4 beige cabinet measuring i 7 B x 4 x 4 W Faclory w-red aih year guarantee S59 95

Cassehe Controller

PlugiJack mtflriace aoy conifjulnr v& tern requiring limctfi cnntrol at asieltf1 The CCl-M contra ie cassetlc motor funcUonfr, rtiipiitors inpe ioealiori wi5h ntern,n ipfsKer and requires no pnwtir. Hjmmaseilfiiipiutjijing irid iinp- J ginrj or cabiSS diir-mg computer load ia opera-1ton frsm cassette 3 EE Mini-Max 6 Digit 50MHz Frequency Counter * Guaran'Fu li jusncy 111190 flf 100 Hi t 50 MH filire digit dispLiy v lh a'lNgSare wndow * Fully automatic iaogs, wiSanty, ilope, 1 rigger, r.pui...

Oealer Inquiries Invited

Ir PMuatft z iici'fr Ba* i Buzzards Bay Mas* (617) 759 i 7b Weit The RhJlti Plm h Sacramento < al l9 16 < 141 7308 N thw T A. ti< r, Suui.ilV mil 9orse Itteh 12C 5 HJ MkfWiSt rr < 1 StftW- E Ci lumbuS HJ HiEharj GtKinit , Virginia 8& i i i btOO

Mpw

If you think you've seen everything in phone patches, check out this one's price tag. Lewis Tamopol WA6RJK 64 South Kingsiey Drive Los Angeies CA 90004 Johnson's home brew phone patch article (D.H. Johnson, Phone Patch Tips ' 73 Magazine, July, 1977, p. 138), E thought I might throw my hat in the ring, too, I buiit this phone patch into an old desk model extension phone several months back and it has worked great from day one. In building it, I

Cb

Wiring arrangement when the 723 is used as a con-troI system for an external regulated supply. Run rvs wires from PC board. Do not use jumper fFig. 41 stand the value of rvs, let's take a look at what can happen when it isn't used. All electrical connections are imperfect, as they have some resistance associated with them. The same holds true for wire, Consider a connector resistance of 50 milliohms and a power lead resistance of the same magnitude. That is like putting a resistor with...

Bits And Pieces

As of this writing, no documentation has reached the ARRL for the HZ1BS 8Z4 neutral zone operation. No documentation, no recognition. are good fun, They put out enough of a signal so that you should not have to have any additional antenna for a contact over any line-of-sight path. Our contact of over a hundred miles was pienty strong. Sherry has been itching to get a hot air balloon ever since we went down to Florida and made the balloon cover for 73 a couple of years ago. If we get one, i...

Front Street Scituate Ma I

Other Regency models at similar savings send for list . .Mass, residents please add 5 tax Onfy 319< 0Q plus 5,00 U.P.S. shipping. Quantity discounts available or (313) 994-4444. Circle C5 on reader's service card for a free catalog or write us at Box 1002, Ann Arbor, Michigan 48106

Second Annual International Sstv Contest

The contest is sponsored by R, Brooks Kendall W1JKF and David Ingram K4TWJ. Contest is held annually on the second full weekend of March from 1500 to 2200 GMT, Saturday and Sunday. 3M0 79 and 3 11 79, All amateur bands between 3.5 and 29,7 MHz may be used, Exchange of pictures should include callsigns, RST report, and contest number. FCC rules require verbal exchange of callsigns for U.S. stations. Do not include contact number 1 point for each station worked, A station may be worked once on...

Tmt

C.F.J, Ward G3TAI 50 Lakeside Bracknell, Berkshire England RG12 2LE ere is a simple fuse tester for the shack which is quick and easy to build and use. Although it is only one step better than a battery and bulb, it does have an advantage in that t will test those low-current fuses that appear here and there. (And it is bound to impress your nontechnical friends ) The circuit is shown in I ig. and operation is as follows 1. With no fuse connected, there is no base current and, hence, no coL...

Comm

Quantity 1 7302N clock chip, Integrated Circuits Unlimited x 6,00+ 1 40-pin IC socket, ICU orlC Elex. x .50 1 LED display, four digits + colon + pm indicator. Archer 276-1202 x 5 Diodes, 1N277 or equivalent x 4 Diodes, 1N277 or equivalent x 2 Diodes, rectifier, 1N4001 or equivalent x 5 Diodes, rectifier, 1N4001 or equivalent x 1 7905 -5 V regulator chip, ICU or IC Elex. x 2 Transformer, 115 V pri,, 6l3 V 300 mA sec, Radio Shack x 1,69 ea. 1 Transformer, output, I200i2pritJ 8fisec., Calectro...

Flat Cable Connector

Ranged top oo* for stortng all Our small parts Od t> > by 2 75* ea COMPUTER POWER SUPPLY TRANSFORMER pri. U0 20 Vac SEC. 12.t V tff fJ A. 44.0 V Oi- L1 I 2 9 V 2 0 A, 12.9 V r 5 3,2 A, Only S14.95 ea. n t6r Com -e .wh q'U meters coding S6 00 ONLY 52.00 aa Why av mo'e CALCULATOR BUBBLE DISPLAY BRAND NEW pocket calculator lisfilays Ranging from > 9djgii YourtocH )are, then really save with our calculator nobby bag assortment Each one contains 3 calculaior k& vboards. All Ihii > r only...

Fremont Avenue

1320 Grand Avenu San Marco CA 92069 Auto, send & receive RTTY & CW. Connects to TRS-BO User Port & key headphone jacks, 10 message memories 255 char . ***** Keyboard buffer-allows typing ahead, JQfl Uses built-in PLL or external TU. kit Morse trainer*randam 5 letter wonts. Includes hardware, cassetted manual. SQ Requires Level II Basic A 16K RAM, * - fJt l version available, 69.95 kit 99 95 wired

Rkc

ffi * NOVICE STUDY GUIDE SG7357 Here is a completely new study AOguide and reference book for the potential ham. This is not a quests tion answer memorization course. Electronic and radio fundamentals are presented and explained in an easy-to understand fashion, preparing the beginner for he Novice exam. Includes the latest FCC amateur reguia tions, as well as application forms. Easily the best path into the exciting world Of ham radio 4.95 GENERAL CLASS STUDY GUIDE SG7358-A complete theory...

Also At Atlanta

In addition to laying it on the line about amateur radio .and I expect the usual goon squad , , , I'll be talking about microcomputers. I ll be talking about them primarily in terms which may be of particular interest to you how to make money in microcomputing. I'd talk about how to make money in amateur radio, but 1 don't know anyone who has figured it out yet Perhaps those who are pushing for the Communicator Class license on 220 have the answer. The opportunities in microcomputing are still...

Fm Wireless Mike

T'irtsn .iii up q Wft 10 FM tHOAdcasi rjdici us > ny r pe of m-ft Ru is Qn 3 ta Type FV7 1J AdCtM r n drw nt'he EK dmip flftsqi' F lfc it S FW- hri M.IS See ntus e came a- 3 Ll ttfteriT ngrui 'irfi muv- On Lrg il lor tow* one for the m*d-fange Ar> o ar.* i(jr irn rr h chan indi-idujiir adiiAiiU dfiv* up lt> 30QVii Greai ior pjrTies tw a ITTuSiC hilo cIlj& l i.-d mo * Compterez ML-I ST 9S

More On Kmcc

I was gEad to read the article, The KM1CC Story ' In the October issue of 73 Magazine. However, i should correct the statement made about the equipment loaned to KM1CC by RCA Global Communications, Inc, The reference to a modern WCC inked-paper readout receiver isn't quite correct. celver, more appropriately recorder, isn't a receiver as most of us would think of a receiver Typically, when we speak of receivers in the amateur radio vernacular, we are talking about devices used to detect radio...

Features

From Panel Controls tor timers fl. AF levels coniroltest tunciions & status indicators State or the Art CMOS control logic & timers No Relay problems' Exclusive Spec Comm MOSFET Hot Carrier DkKie revr front end reduces dense & IM problems' Suill-in AC Supply w irv slant btry switchover for emergency pw + Tricked Chgr) Suppiied with .0005 Interna I ion a I precision Xtiils. local mic & FL-6 Preselector Sum-in CW IDef - Low cur rent draw. 25G brt...

Sst Dm Kwj Dummy Load

1 he ' DL I is a unique naniroirtjsiyi ch nufi iulmr'y -Jrt< j.' - ii hfli tvcr lineyelrj-pSj - if t EU u K KlltL.J 12 ytii Tin i s --. c-.jivjfi , like il ijriiisfc nv i nil-i livitJs. rhe OL 'ti 1'1 no ieaV. Ii . staled atrfffe& dy Eft clsi A di unrny iqad 5 iL mvu ior any h jn i ,h.lh w H . II . 10 , -I.lU s, sc r. rnr i ', L I ideal for ponabli, btt, ranr i > d mk V , hopir ibor Ii.jt Komi -ind Ltsfcifc Al Lii-af* r( ls ing will ftjMl ban Ltted u- h SWH -and power matfpst Mjk JJOW T...

Uos

185-191 West Main Street P O Box 88 Amsterdam N Y 12010 Tel (518 842-8350 Just 5 minutes from N,Y. Thru way - Exit 27 lein Amateur Radio Society will hold its second annual Lamars-fest on Sunday, March 25, 1979t at the J. M. Club, 708 Green wood Ave,, Waukegan, Illinois. Doors wilt open at 7 00 am. There will be plenty of iree parking, door prizes, and a large indoor flea market for radio and electronic items. Tables will be available at 4.00 each. Advance tickets are 1.50 2.00 at the gate,...

Tu

Ma I0i modelt atami option tnduta L(jfri d'Ttumet crysfai rimfiiHSc PC twafds Fdiy riigijLiiwJ, comp instructs Arid S3 95lw beau-tffui ovk gray casi Bts anywhere AC Oper IfTtVan iNA resokrtioti ttneeit 20n*eg iSsccur& cy SmiL cotqptatBfylfiSem ilase arantpe twst vaiue even SS9 95 JnCkxir 10 autdcor S*td)e back aid t& rm BeiL-pful 5Q LED 'Mdouts tiffin ri anlliok eds noadtffTicmaI iianstot com-pleie fuftl npefition m rmisure -100' 10 JOCr f lenms oi a a ree of iiQurd Verv accurate S39.95...

Ndw

95 Partial Kit includes Microcomputer components and circuit boards Jess box and atuleff components 225 Complete Kit (includes bo*, power supply, and all other components 1295 Assembled and luted unit Us shown Overseas Orders and dealer inquire* welcome 1 to 150 WPM * ith Auto-S nc, Continuously computes and display Copy WPM Re-keyed Sidetone G*c. frith on-board speaker Fully compensating to copy any 'fist style See your local dealer or contact XITEX* direct I3G2B Nwrtrw PO B -UttM i. . - s _...

Clock Kits

Try your hand at building the lines' looking clock Oh ihe marker its sattn tirvsii anod ed aluminum case looks great anywnere, while s* 4 LED'dig ts provide a highly readable displav This is a compile h> r no exirasneeded jnd il uhly i*J hours to assemble Your choice ol case colprs Silver gold bronze, black, biue specify Clock kit, 12 24 hour DC-5 532-95 Clock with 10 min ID rimer. 1 24 t dUf Alarm clock 1 2 hour only DC-B 24,95 F01 wire anri testad clocks add 1 0 01 1 c. kil Lirit ij

Qyg

RF CONNECTORS ANTENNAS SWITCHES TRANSFORMERS ETCHING KITS RESISTORS HAM GEAR CAPACITORS TT1111 IIII TITII T or Easy Mounting Reflective type LCD display with snooze, aiarm and PM indicators. Very low power requirements. Direct drive design needs only 4 to 10 VAC at 2 uAt Complete with socket and data sheet. P.O. BOX 2366 INDIANAPOLIS, IND. 46206 TWO NEW AC*DC BATTERY PORTABLE COUNTERS OPTO-eOOO ,1A 10Hito600 MHz FREQUENCY COUNTER * Precision TCXO tirne base U.I PPM Stability 17-40 C Super...

Ccz

Now that GJ.S+M G.'s handling Kenwood, it's only a matter of ttrne until you own a TS-52QS with DG-5 digitaT frequency readout, or one of Kenwood's other impeccable products. The TS-520S jis the 'esuit of Kenwood experuse and your improvement suggestions. Tiie DG-5 option gives you crystal clear, dead accurate readout while sending and receiving. Only problem is your lady's going to see a lot less of you when you get hooked on Kenwood quality. We've t 01 the entire Kenwood line....

Rules

1) All contacts must be made in the 10 meter amateur band using channelized AM equipment. Both converted Citizens Band equipment and com merci ally-produced units may be used. 2) To be eligible for award credit, all contacts must be made October 1,1978, or after 3) The 10-40 Award is available to applicants showing proof of contact with stations in at least 40 of the 50 United States, A special endorsement sticker will be available to those working all 50 states. 4) The DX Decade Award is...

Hof

HQ HOC fteeeiver HQ 110AC Receiver HQ 145X Receiver HQ-liOC Receiver HQ.1B Receiver HQ 215 Receiver SP 600 Receiver HX 50 Transmitter VHFt rTranim Cfi-et Trftmnifffr Galaxy Ml Xcvr Ga axy V Xcvr Ga 3*yv Mk ll GT SSOXcvr GT 50 A Xcvr AC 400 Supply FM iTOJM FM Com 11 2M Com I 4M Com iV M GC- Q5 2M G 2 Xcvr G-50 Xcvr SB- 300 Receiver SB 30 Receiver HR 10 & Receiver SB-303 Receiver SB 220Linear Amp SB 102 Trivcvr DX AOS Transm itTer HW J Transmitter HW 100 Transceiver SB-100 Transceiver SB-4Q1...

Ow

73 DIPOLE & LONG WIRE ANTENNAS 5+50 73 BACK ISSUE 3+00 73 BACK ISSUES 25OURCHOICE 10.00 73 BACK ISSUES 5 YOUR CHOICE________ 7.00 73 BACK ISSUES-10 YOUR CHOICE 12.00 73 BACK ISSUES 25 YOUR CHOICE . 20 00 BEHIND THE DIAL S 4,95 6.50 6.00 CHALLENGEOF 160 4.95 4.95 CODE TAPE 6 WPM 5 4.95 CODETAPE-10WPM 4,95 4+95 4.95 4.95 CODETAPE-LEARN MORSE CODE 4,95 CODETAPESfANY FOUR ABOVE) 15.95 GUIDETO HAM RADIO 4.95 HOW TO BUILD A MICROCOMPUTER 9,95 IC OP AMP COOKBOOK 12.95 2.00 NOVICETHEORY TAPES 15.95...

Laporte In

The LaPorte Amateur Radio Club will hold its winter hamtest on Sunday, February 25t 1979, at the LaPorte Civic Auditorium, LaPorte. Indiana. at last your shack organized A beautiful piece of furniture - your XYL will love it Designed with angled rear sheff for your viewing common and ease of operation FINISHES Walnut or Teak Stain. Aisoavailable in Unfinished Birch, S134.95 ChecHs v-iey Orders BamiAmericart and Master Charge Acceded FOB Cu'.-er Cit> ' n CaJff Add 6 SalesTa* ) 4j fSTO E AVENUE...

Horizontally Poiarized Antenna

The SS HA-2 is a full half wave, horizontally polarized omnidirectional 2 meter antenna. With the horizontal polarization standard, the HA-2 is a must for 2 meter SSB mobile. With the vertical horizontiil adapter option, use ir with your FM rig too Although the SST HA-2 was designed for mobile operation it will work well as a fixed or portable antenna lis small size provides the traveling ham with an antenna thai can easily be packed in a briefcase. Mobile, portable, or fixed operation....

Wkw

For receivers and transceivers. Continuously tuneable 1.8 - 54 MHz. Covers all amateur bands 160 to 6 meters all shortwave broadcast bands. Low noise figure. Up to 20 db gain. Reduces image and spurious response. Here is an exciting new device to improve your reception on all bands 1 -8 to 54 MHz, It gives up to 20 db extra gain and the low noise figure of a dual gate FET to pep up your noisy receiver or transceiver. And it adds a high Q tuned circuit to give improved...

Petting

Lilie for his fine article on the Commodore PET (Look What Followed Me Home '1, page 142. November, 1978). One of his complaints11 regarding the tape-handling system is the difficulty he experienced finding the end of program B on a tape when he wants to load a new program. A, on the same tape (he listens on an audio cassette deck for the end of the noise). I have a better suggestion Ask PET to VERIFY B PET A'ill search for B. iind it, compare it with A in memory and report a...

Led

'( ADiO SHAG* ps 76-2029 ofi any tvpe ujt Before getting to the circuits, one might mention meters as battery status indicators, The availability of inexpensive, imported microampere meters might appear attractive to use because of the very low current drain But, if one calculates the current change indicated by the meter as the battery voltage changes, it might not be very significant. The current change indicated depends on the internal resistance of the meter and any added series resistance....

Printed Circuit Edge Card

Ts S& icinc - -UfijSifi Fiead-Oai - adi aded Cantiris Fiis DiiJ Oin C Cava l 15 30 PINS (Solier Eyelet) S1.9S 1S 36 PI MS (SoWer Eyelet) S2.49 nfAA PfMS Eoldii Eyelet) MM SO.'iOD .tDO Spadrgi PINS iWire Wrap) J6.95 50 103 1.125 Spacing) PINS fWirg Wrap) -t SB 95 Expand your 4K TRS-80 System to- 16K. Kit comes complete with * 8 each UPD416 (16K DyiianiFC Rams) Documentation for conversion Special Offer - Order hoth your TRS-16K and the Sup-R' MOD il Interface kit together (retail vatue...

Lt Dj

Biwi Qliw* Villi-F Hi 'fl id JiHPHi P.fH Chp'ltii LEU Wm ni iiu Dipt .1 'ilmi, . **i VFlIf a- I'M'I i-T.-hni lih.- .ii iHh. j-.i i.i.i -.Min i > t 'J< him WHA4* M3LIH, in H-i UftiblR 1IHH 'Jrtc1 opir OfliHtll OUipCM df rtWMl JJ--2JUI iMeU Uiilr tllut. .idil t inii Lt iBtUhrt (ram fm io C IC 2DCI.LTE b *-BTJ 1< F LTV huA i 14 I Ja 41 Hh IT -r ''I I ' ill w hkt 43 3V illHi t* < P Di1L*Mi VxrVuz,* I Oil p n odfta -I.SO MMliiTi 0 ItU JJ I --. rsi WW i J i , .'Iii a. J *.E rn'J IlD...

Repeater Control

The Power and Flexibility of Microprocessor Technology AUTOPATCH, REVERSE PATCH, SMART ID, ACCESS CODE MUTING, MORSE CODE ANNOUNCEMENTS, FLEXIBLE FUNCTION TIMEOUT, COURTESY TONE, LINKING, CONTROL OP, FUNCTIONS, TWELVE USER FUNCTIONS, AND MUCH MORE. MICRO CONTROL SPECIALTIES (617) 372-3442 The ONLY thing you need to know about Best delivery plus Emergency Service with Guaranteed Delivery Highest Quality with gold MIL* C-309B Process

Add S

Thousands of computer systems rely on this rugged, work horse RAM board Designed for error-free, NO HASSLE, systems use, 1 Doubled sided PC Board with solder masK and silk screen layout Gold plated contact lingers 3 Fully buffered on all address and data lines 4 Phanionn is jumper selectable to pm 67 5 FOUR 7805 regulators are provided y V on card___ B' o--. -C 5oard w Documentation S 29.9 5 LOY. profile Socket Set 13.50 Support ICS iTTL & Regualorsj S9 75 Bypass CAP s rDisc 4 Tantalums) 430

Turn

Adding a trimming resistor to adjust frequency. The temperature stability of the tone generator circuit can be improved considerably by using temperature-stable components for R and C. For C, mylariM or silver mica capacitors should be used for R, 1 resistors of the variety RN55 (an industry designation) should be used. These components exhibit good temperature stability, and are readily available from the supply houses listed at the end of the article. Fig. 5 shows a stable oscillator...

Radio Amateurs

in case you forget Bartholomew -B& W's portable antenna WA2ALT another step toward perfection . . WA1LMV works in spite of itself WA3EEC insensitive to harmonics N4ES 34 Custom-Designed Power Supplies -try the 723 K2GEJ nifty SIS operating console . . _. WA4CUD the garden cultivator technique W4MEA -cheap HF radiators WA8ATE another Jook at swr Staff review of Lancaster's treatise VE2BVW hooray for stability WB4MBI. a one-shot with more VE2BVW measuring wind speed, . K2CL 58 A...

Umts

M-jKl' Hoar Manila M COI- I 02 Ii i Mann )' U-ft Us*- K nuiJ 251 21 JO CliH riolur Esniraiuuiipjnr casz' .'Mil C < i giBr efar & nflratJ to fir mm 2301j 2018- i real oii v .y IHi.-3 ILIh'- M S Btlc SWns-l(jw ill > i L- LE.Hr UPD IB H H nn- 2117 16.3& Jjri Dvnarrtc 35Qns (tlc-iisfi mat-h Clj 1he peihip ftiislle- 1 3 is .l oi f reccrdirj rfa io io r l-J d 1u > - MMiruI . iifiil ilfied rconifH n .itJ- r.n Tl-e r co-n ii ,rii j Jh 1 i mmun e dirEElly wiir-antrihw modern and tKmnai lor...

Md

Nm Hin- pnri bHiEh Fbi uhf ilwk - oitia m( fef Mr t ij h t Chinnil 3-E Ai-ul.'.m HHl .flUlnii WUUut rtkhhur irttv mini- hi Hi Pi 4i < i 5wilrll lBD4tiV 10*nA PHP Hi Am pill m' K hiLlIi H h.mi.l AM-HI TET Huflij Inw 1 V.I1 PNrTr.DU.lBr m K-V r Ph C-MIIHHl ht r ViHi HF ,-.,-,1,1 N ChniMiMl FF I

Case

That's right, not just the module but module and case for 19.95, The MA1003 has blue-green ftourescent readouts, a highly accurate built in ttmebase (excellent for mobile applications andtor battery backup)T and easy assembly add 12 Volts DC with 3 time-setting switches and you're ready to go. Our matching case has a woodgrain front, mounting bracket and hardware, and a blue filter that really brings out the best in the MA1003 readouts. And tor those of you who already bought the clock module,...

Itt North Electric Na Power Supply

We nave pu'chas-eii a IIHired qunr,1.(y of these power supphes (hrougr1 a. rg phcne tsojnpmy wrtrnhtjgr liynitl li n S Lllfc prlcfe j - d M V rhey l*ft Thssfc Mppjirt ftfltilfirly ViMag. LMpiH MuHtfto l wr. TT 1J Z'f J0 . l l IK d Ou pii vMttgt * 11 CL-'',, tit Ulf . n m fi i-> Im -une Lm in r-L pu -tti'tt w km eu *-' ompuh arc I OMrt d VrU lc inn iftWnnpwtm Ilunnu w hl> Mii nin K HHJ i(rt)4*cn ' , i 4ftiMhiir' lLftii .i ifrtj'i I-L. -. a H i-i Ovm ir-pnl pn nr Ipul im tarif Y .V Ek-l. cri...

Touch Tone Decoder

HIGHLY STABLE DECODER KIT COMES WITH 2 SIDED, PLATED THRU AND SOLDER FLOWED G 10 PC BOARD. 7-567's, 2 7402. AND ALL ELECTRONIC COMPONENTS. GOARD MEASURES 3Vt x SVi INCHES. HAS 12 LINES OUT ONLY *J9.95 DELUXE 12 BUTTON TOUCHTONE ENCODER KIT utilizing the new ICM 7206 chip Provides both VISUAL AND AUDIO indicationsi Comes with its own two-tone anodlzed alii mi num cabinet Measures only 2 3.f4 x 3 3 4. Complete wirh Touch-Tone pad, board, crystal, chip and all necessary components to finish the...

That Lonnng Arrl Piece

One of the problems is that I'm spread a lot thinner than I shouid be. instant Software is demanding as is Kilobaud MICROCOMPUTING and with two or three more magazines in the planning stages, when do I sleep This came to a head last month with my endless editorial about the League. Normally, when I write an editorial, I sit down and write with smoke coming out of my typewriter. Then I find the heat abated a bit and write a second draft which is a bit less fiery. If I don't like the first two...

Cdakit

CalUresidents add tai BanfcAmericard and Master Charge accepted Shipping charges will be added on charge cards FREE Send for your copy of our HiW 1979 QUEST CATALOG, Include 2Sv stamp P.O. Box 4430M Santa Clara. CA 95054 Forwill call only 988 1640 2322 Walsh Ave, Same day shipment. Ftrs me paris only Factory tested. Guaranteed money back Qual-r y IC s and ottier comportnrs at factory prices

Tivi

To pass the new FCC code exams, youll need to identify unusual names, places, antenna heights, rig types and a variety of other items garnered from simulated QSOs, Now vou can really study for the current exams with the Kantronics QSO Tape. (7L 2l 10. 13 and 15 WPM, or 13 WPM only) or the QXX Tape (20, 23 and 26 WPM). These C-60 cassettes generate computer-perfect on-the-air transmissions, and include a text key and simulated exam for self-testing, If youve used these tapes before, you'll be...

Kit Features

I A.-iriir-in lou SBpiirare IK Blorfc OM BOARD BANK SELECT circuitry (Crcnu mcQ Standard11 Allows up to B1TK on llFIBl 3 I Iv-, 2t 14 (450ME) 4K Sialic Rams 1 ON BOARD SELECTABLE W UT STATES 5. Doublp sided PC Board, with solder mask and silk screened layout Gold plated coniaci lingers < AH addrfjss -ind dma lines lully hnrFpred i1 Kii include ALL pans and snckeis A PHANTOM 'S fumpered toP N 7 fi LOW POWER under 2arnp TVPtCAL from in( Vi Voll BU55 10 BtanJ PC Board can be populated a any...

Selected Values

These items are chosen Iron, uur *asl in-venloify of tnduairlail quality components' Entruded heat -sipik 10 7 bv 2 IM by SIB . . n _ ,, . J I (1 ,4a r> 00 Ohm P C mount trimmer 20< t Line cord 18 ga6l 25 74LS175 Quad D thp-flop & oe ACfO BRUSH 10* 2 cond 24 sptrai wrap shld cat> ie 10c Pin DIPHEADFP Orders Use Our TOLL FREE HOT LINE 1-800-426-0634 for areas outside Washington incL Alaska & Hawaii J3C m& i c j iin ulHM W '.7BrCn -i V j-J. j CbOIM Money ontao T< h* PVKMT ' v...