Parts List

C1f C4, C7, C14- 115-550 pjuF Padder Elmenco 304 C2( C3, C12 - 2000 i uF Dipped silver mica CG, C11, C16 - 1000 JfJiF Dipped silver mica C6, C13 820 fJjlF Dipped silver mica C9r C24 - 0.1 IF Centralab Type CK Ceramic C15, 18 ,033 IF 100 volt Mylar C17, C19 - 1400-3055 JfJiF Padder Elmenco 315 C20 - .01 IF Centralab Type CK Ceramic C21 ( C22 - 220 (JflF Dipped silver mica C23 1000 JLiF 6 volt Cornell-Dubilier Type BBR R2 - 1 OK Ohmite AS watt potentiometer R3 10K Bourn E Z Trim Type 3067 S 15...

Vmb

TTL Quad two-input nand gates TTL decade counters TTL Divide by 12 counter TTL Divide by 12 (8 MHz output only) TTL programmable up-down decade counters TTL dual J-K flip-flop TTL Type D flip flop TTL hex inverters TTL eight-input nand gate TTL triple 3-input nand gate 5V regulator, 250 mA. (may be replaced by an LM309K if you mount it off the board) 5V regulator, 1 amp,, plus finned heatsink MECL oscillator RCA dual-gate-protected FET transistor Motorola enhancemnt M channel FET transistor...

Nylon

Couple of others using cavities, and straplines in rectangular boxes, and was found to be their equal for dc output for a given amount of rf. It was just this rf that didn't want to give 1 All kinds of chokes in the emitter and other arrangements were tried in the 1296 MHz test oscillator to bring up more power, but to no avail. 1 finally had to resort to taking out the Motorola HEP56 transistor and putting in a KMC HI04. The HEP56 shows good power on 432, lights a bulb and all, but on 1296 MHz...

Info

JVorma ized 2-pole low pass. i he new two-pole configuration is shown in Fig. 9. With this section added to the previous three-pole network, the five-pole filter provides us with 10 dB gain, but, as can be seen in Fig. 7b, no additional attenuation. Thus it is not possible to vary the response curve by adding additional poles without recomputing I lie pole values for the entire filter. In other words, to change a three-pole network to a five-pole configuration, calculations from...

Full Scale

Case the oscillator drifted 4 parts in I 0l 0 Gaps in the trace are caused by once-an-hour 4 5 degree phase shifts introduced into WWVB carrier for identification purposes. These gaps begin ten minutes after the hour and end fifteen minutes after the hour. If daylight fading should occur, it is a certain indication thai ionosphere disturbances are taking place and are likely to be accompanied by apparent received phase inslabilities. (ode information is also transmitted along with the...

Standard Src M Updated

Standard doesn't seem to even try to take advantage of their changes in design. Pity, for they have been making substantial improvements in the unil and the changes should he brought to the attention of the prospective customers. The recent review of the 826 in CQ was particularly unfair, with a good deal of space being taken up airing complaints over problems that have been surmounted for quite a long time. The fact is that the Standard equipment that has been sold for the last couple of years...

Tektronix Oscilloscope With Type T And Type K Plugin

CARTER ROTARY CONVERTER 2BVDC-16AMPS INPUT WITH 115V 60HZ OUTPUT AT 2.3 AMPS PORTABLE HAND CARRY. IDEAL FOR CAMPERS, FIELD TRIPS, BOATS, EMERGENCY AC POWER, AIRCRAFT, FORKLIFTS, ETC., HAS MANY LAMPKIN 205A FM MODULATION METER, IDEAL FOR TWO-WAY, AMATEUR OR MARINE REPAIR BUSINESS TS 148 UPM 33 SPECTRUM ANALYZER RANGE Y-BAND S470 9630MHZ, SWEEP WIDTH 10-30MHZ VARIABLE, FREQSWEEP 40-50MHZ, IF BANDWIDTH 50KHZ. PERFECT FOR ANY RADAR WORK 39.50 MEASUREMENTS MODEL 59 GRID DIP OSCILLATOR WITH ALL COILS...

Expo

While not the dud of Expo 71, this is still not a hamfest to drag in the troops in quantities. Much of the problems facing the committee running the hamfest this year were the results of gross exaggerations made by last years committee which resulted in enough resentment on the part of many exhibitors to keep them away in 72. As an exhibitor in 71 1 seemed to me that the 10,000 or was it 50,000 promised was in actuality a few dozen. Tliis year tiiey soft-pedaled the promises and few of the...

Fm Your Gonset Communicator

Puts the Communicator transmitter on FM, rewiring on your Communicator. Just plug into mike jack and crystaf socket, Works with Communicator t MP (II, IV and FM at a tenth ttie cost of a new rig. Frequency adjust for netting built in. Built-in tone burst available. Keyed by pusn-to-talk switch, 34.50 postpaid U,S.A+ Built-in tone burst 10.00. Specify Communicator model and tone-burst frequency. California residents add 5 sales tax. (HC- 6 U crystaf and 9 volt transistor battery not supplied.)

Lee Electronic Labs

GET V DIPOLE PERFORMANCE on 10-15-20 & 40 meter phone bands WITHIN 14ft SPAN EASY INSTALLATION - NO GROUND-PLANE, 15 lbs, SINGLE 50 ohm coax BALUN feed, NO TUNING, SINGLE MAST MOUNT (see photo) - CLEAN, NON-OBSTRUCTING for TOP-OF-MAST RADIATION from MARITIME MOBILE - COMMERCIAL QUALITY - First Class Rugged, Lightweight, Seaworthy & Weatherproof Materials & Workmanship - 100 TESTED - SATISFACTION GUARANTEED 395 plus tax, Prepaid or C.O.D., F.O.B. Los Angeles, California M2 < M...

Wdxxi

A few weeks ago while we were in Chicago for Expo-72 Wayne and I hud a chance to work through a very fine repeater. The Chicago 16-76, WA90RC The repeater features several satellite receivers with a voting system- must say, I was impressed with WA90RC. At the Expo72 site the ORC gang had a control point set up for talk in and message handling. They had several of their people walking around the vast area with walkie-talkies on a secret frequency. These people were acting as security for the...

Meter Aircraft Monitor Receiver Mc

R 748 TRC 47 single channel AM crystal con trolled 110V 60CPS f pwr supply & speaker built in, squelch, r-f gain, dual conversion modern design. Size 19' W x SH x 14D for rack mtg. Supplied with schematic & hookup info. No conversion required. Exl condition 29.95 T-47 A RT-13 2-18MC transmitter Less tubes - Good condition 14.95 T 17 ART-13 with tubes Exl. Condition . . . 49.95 RT 18 ARC-1 transceiver 100-156Mc Exl. Condi ARC-3 transmitter 24 channel 100 156Mc ExL Condition 14.95 BC-348...

Simpson Model B

Simpson Vhf Transceiver

How about a 12 channel two meter FM transceiver with a full 25 watts output The Simpson Model B has been getting rave notices in the VHF marine field, but has not been formally introduced to the amateur market yet. The Modei B Simpson uses the same boards as the well known Model A and beauties they are, too plus a 25 watt transistor power amplifier No tube here, this is all solid state power. The receiver output goes into a front speaker with two full watts of audio power so you can turn up the...

Special Offer

BC Dto 7 - Segment Decoder driver SL403D 3.5 W AUDIO AMP C HI-FI QUALITY The Ml NITRON readout is a miniature direct viewed incandescent filament (7-Segment) display in a 16-pin DIP with a hermetically sealed front lens. Size and appearance are very similar to LED readouts. The big different is in the price. Any color filter can be used. MC 1550 Motoroia RF amp 1.80 CA3020 RCA Vi W audio 3.07 CA3020A RCA 1 audio 3.92 CA3028A RCA RF amp 1.77 CA3001 RCA 6.66 MC1306P Motorola J4 W audio 1.10...

Hep Tr

C, C9 - 275-970 fjfJF Elmenco padder 306 C2, C3 - 0.0033 IF Mylar (2200 fJf. F for 6 ft loop) C4, C5, CS - 1000 fjpF DippJed Silver mica C6, C10 - OA JF Centralab CK-104 C7 - 820 WUF Dipped SiJver mica Li - 3 mhy C.T+ Wound with No. 26 magnet wire approximately 85 turns on an Indiana General Corp. cup core TC7-04-4Q0. Link is 3 turns of insulated wire RFC1-10 mhy Ferrite core rf choke TR1, TR2 - Motorola HEP 802 transistors or RCA 3N128. to the loop antenna by wrapping a turn or...

Feather Touch

The solid-state design detects the mere touch of your finger and eliminates such problems as contact bounce, proper adjustments and dirty contacts. Operates with all keyers. Weighted, S22.95, 25.95 (With SPDT Switch Option.) This low-cost keyer has more features for your dollar than all the others in its price range. Even some in a higher price range Go ahead look around - compare the rest Then buy the BEST - Data Engineering's new CRICKET Jam-proof spacing Self-completing dots and dashes...

Klsg

I enjoyed solid state construction and Bob Manning's articles are very very good - really enjoy them. Keep plugging away for us as your efforts are greatly appreciated. You might want to mention in youi excellent publication that copies of a U,S, Air Force Medical Service Digest article on Navassa Island activity in February, 1971 are available free of charge by writing to Richard J. Brown W0EXD KC4, Pathology, Bid. 626A, NAMRL, Pensacola FL 32512. Would you like to know why I decided to...

Sale

Wanted B5 Caiibration Manuals, NAV 16-30 ARC, 38-50 FCR, C1398 ARC 38 ALSO other types of manuals T 17 Handmike T 1 7 Handmike R 101 ARIN 6 Receiver, 100-550 KC R 23 A RC-5 Receiver, 190 550 KC RT 66 GRC 20 27,9 MC RT 67 GRC 27 389 RT 68 GRC 38-52-9 RT 175 PRC 9 with CY 744 RT 196 P RC-6 BC 11 OA swbd-C battery 50-60 eye, 30 magneto 1 ph, H 11 3 Headset new M 95A U microphone with boom M 96 U microphone with boom Canadian microphone type RS 38 with F-1 xmtr with PTT switch M 51 UR microphone MC...

Wazdf

Wl LSON M340 amp M810 plus SIGNAL ONE'S CX7A Wilson Electronics has gotten together with Signal One to make it easy to own the best DX combination available, if you purchase a Signal One CX7A from Wilson Electronics for 2395.00 we will give you a 6-element 20 meter beam for 1.00. Now the 6-element 20 sells for 300. If you don't want a 6-element 20 meter beam, we will apply the same value to any other combination of antennas you want. Trade-ins also accepted. For a winning deal call Jim Wilson...

Sub Audible Tone Encoder

The Communications Specialists continuous tone encoder is a wee one, about VA long, 7 8 wide and high. It uses the resonant reed made by Motorola or Bramco to determine the exact frequency. The oscillator will operate over the range from 67 to 3000 Hz. The unit pictured has a Motorola 4A reed plugged in, resulting in a continuous 14L3 Hz tone being generated. There are a few repeaters that are turned on by this type of tone instead of the more ordinary carrier operated system. These are listed...

Govt Surplus Optics

R390a Receiver

6 f 63 METROGON wide-angle lens 73 angle of view . In cone with shutter fabric shipping trunk included. 15.00, Filters, red or yellow, 3.00 each. 6 f 6-3 METROGON wide-angle lens 73s angle of view . In cone with electric Raptdyne shutter. 25,00 Filters, red or yellow, 3.00 each. Fiberglass Shipping trunk, 21 by 18 by 13, 20.00, 24 f 6 lens assembly in K-17 cone with shutter and iris. 30.00 each- Filters, red or yellow, 5.00 each- With electric Rapidvne shutter, 40.00, Fiberglass trunk, 26 by...

P Box Vienna Va

TfeJl prtpires you at hone fQr F ftrit Da Pitipi chai int ntf cnpFtiatfc tfiiqrjms. plus - S lf- lt ability Test. Uif 9 Q5 Pr t filters, we now must employ extra sections to create a fiat response. In order to estimate the passive component values for active filters, we use a network normalized for a frequency cutoff of 1 radian per second. The network shown in l ig. 4, gives the normalized component values for a three-pole filter to produce a Butterworth response. Recomputing the capacitor...

Glb Synthesizer

The GLB Electronics model 400B synthesizer is now beginning to become available to dedicated FMers. This synthesizer is designed to work with most of the popular ham FM transceivers and make them so they can hit any 0 kHz frequency on transmit and receive in the entire two meter band, from 144 148 MHz. There are two sets of dials for setting the frequencies. One se is used for transmitting channels and the other for receive . . plus there are switches to reverse this order if you happen to feel...