Multiband Coaxial Antenna

Full electrical wave on each band. Excellent quality construction. Mount with inexpensive TV hardware. Patented. Needs no ground plane radials. Full electrical wave on each band. Excellent quality construction. Mount with inexpensive TV hardware. Patented.

More Two Meter Fm Channels

The FCC does not have any intention of giving us the green light for repeating Techs above 147 MHz, Though their rules are quite explicit and it would be exceedingly difficult to interpret them as prohibiting a repeater from retransmitting Techs above 147, jt is obviously easier to avoid a fight than to go after one , , so most repeaters have been avoiding the 147 MHz range. The 14b 147 segment is FULL in many parts of the country and the pressure is mounting for more FM repeater channels....

Keyboards

Three keyboard* are available, as illustrated, 20 key calculator keyboard, 40 key alphanumeric, and 12 key touch tone. Ail have separate contacts brought out to edge connector, Touch Tone Keyboard + 9.50 Calculator Keyboard . 14.50 Alphanumeric Keyboard 29.00 80 PAGE CATALOG - Free With any order or send 0.25 ALL ITEMS (WHERE WEIGHT IS NOT SPECIFIED) POSTAGE PAID IN THE LL S, A, Phone in charges to 617 53V5774 or 617 532-2323. SankAmericard Master charge, 10.00 minimum. No C.O.D s please, Phone...

Motorola Digital

MC724 Quad 2-input RTL Gate 1.00 MC788P Dual Buffer RTL 1.00 MC789P Hex Inverter RTL 1.00 MC790P Dual J-K Flip-flop 2.00 MC799P Dual Buffer RTL 1.00 MC1013P 85 MHz Flip-flop MECL 3.25 MC1027P 120 MHz Flip-flop MECL 4.50 MC 1023 MECL Clock driver 2.50 MC4024 Dual VCO 3.00 MC4044 Freq. Phase Det 3.00 MPS6571 .60 MPSA12 NPN Darlington gain 20K 90 2N706 packet of 4 1.00 2N2218 packet of 2 1.00 1N4001 packet of 6 1.00 1N4002 packet of 6 1.00 1N4004 packet of 6 1.00

Wjer

A part of the audience viewing the parade at one of the nursing homes. entry had disappeared down the street, everyone chipped in and began disassembling what to our mind was the greatest thing that ever happened to Marshall County. All reports from the nursing homes were superlative, nol only from ihe hams stationed there, but also from the patients and staffs. Even before the equipment was fully disassembled, talk turned io how we could improve Ihe system next year . . . such as John J....

Commerce Park Drive

World Wide Export Roburn Agencies, Inc. 349 W, 14th St. New York, N.Y, 10014, Cable Address Roburnage-New York Donald D. Dehn WB9CXE 927 Clinton Avenue Oak Park IL 60304 In the surplus commercial FM equipment market, the General Electric Progress Line equipment has often been overlooked in favor of the somewhat more popular, and possibly more available Motorola gear. The lack of good conversion information basic enough for the FM newcomer, such as has been available on the Motorola gear, has...

Plate Plight

There is so much to say about theApril issue ill try to keep myself down to a few choice words so as not to take too much of your time. This issue was so great that a few of US got together just to sit and praise it last evening You really hit the top with this issue Watch for some fire from Nebraska in the next year or so about license plates seems the legislature here said anyone who wanted special plates could pay a 50 fee and many people did, I hen they saw amateurs with call plates and...

Care And Feeding Of Tape

Encino CA 91316 For those who want to keep, store and retrieve tape, there seems to be several problems that are encountered. Having had these same problems for severa' years with about 25 RT1 V picture tapes, a few tips may be in order. Of the two types of punches, i prefer the chad type, Fven though the little chads to get into things, the tapes are easier to wind, store, and to feed into the TD. But then, most of the punches are the chadless l u so will...

Kwf

430 Mhz Collinear Homebrew

F3 SF4H 4 WAVE TRANSFORMER OF 75 j L COAX CABLE, F5 PHASING LINES OF 32COAX CABLE, Sf SWITCH POSITIONS lall BAND BROADSIDE. 4, 40M east cardiod BOM END-FIRE. AND 20M END-FIRE. 3,40M WEST CARDIOD 5.15M END-FIRE. AND 20M END-FIRE 6- QM END-FIRE, Jerry Selenke W9JER Vocation Central Donaldson IN 46513 Ham radio has, since its inception, been permitted and sometimes tolerated by the federal government primarily because of its value lo the nation in times of...

Technical Aid Group

The Technical Aid Group is a band of volunteers who offer their services to those who are befuddled with troubles. When making a request, please use an SASE. For more members with their speciality areas and information on joining the TAG, sec March M 73. Allen Hoehstetler, WA4HNX, 1524 Valencia St,. Clearwater FL 33510. Allen is able to help anyone with Hb transmitter and receiver problems, solid stare matters, and ICs. Allen is also able to locate needed parts. Please do not forget to include...

Info

There are a couple of different ways to look at signal one's CX7A. You might compare it to a car. For the rag-chewer s convenience and ease of operation, it's strictly in the Rolls-Royce category. For the competitive-minded amateur, it's like driving a Ferrari. That's because the CX7A was designed with uncompromising quality. With more features than you can imagine. The rig equals a room fult of gear, all neatly enclosed in a compact, desk-top unit. It lets you do things no other rig lets you...

New Linear Transistor

TRW Semiconductors has developed a new transistor that will have wide-reaching effect upon us all. Their PT5 4G series can be driven with less than a watt for outputs of over twenty watts at twelve volts. This is significant Tor transistor power amplifiers thai can be used in your car with fiej power drivers. Four of them can he driven to over 100 wattS output which is perfect for driving most tube kilowatt amplifiers current on the market. QRPPers can easily go QRP or QRO with a single...

P

The basic antenna loading scheme A and three networks which were considered in order to provide simplified single-band tuning B . Fig. 1. The basic antenna loading scheme A and three networks which were considered in order to provide simplified single-band tuning B . There are several ways by which the coil taps shown in F ig. 1 A can be replaced for single band operation by a continuous tuning scheme. Some of these possibilities are illustrated in Fig. 1 B . The simplest scheme is...

Summer Special

B amp W Model 361 Coda Keyer improve your C, W. operation. The B amp W Codax Keyer provides smooth rhythm keying. Automatic spacing and timing of any speed from S 50 w.p.m. Built in double paddle key forte for dots, one for dashes readily adjusts to any fist, Mode 361 has a monitor built in in order to monitor your own keying. Offer expires Aug, 31 aJ 4-pole elliptic function filters 200 Hz narrowband . genera lor and counter, along with a sensitive ac voltmeter. Not all amateurs have access to...

Special Offer

8CD to 7 - Segment Decoder driver PLESSEY SL403D 3.5 W AUDIO AMP IC HI-FI QUALITY 3.95 The MiNitron readout is a miniature direct viewed incandescent filament display in a 16-pin DIP with a sealed front lens. Size and appearance is similar to LED readouts. The big difference is the price. MC 1550 Motorola R F amp S1.80 CA3 20 RCA ' , W audio S3.07 CA3020A RCA 1 audio 3.92 MC1306P Motorola W audio S1.10 MC1350P High gain R F amp I F amp 1.15 MC1357P FM IF amp Quadrature det . 2.25 MC 1496 Hard...

Whom To Write

If you arc uptight over the idea of turning our desperately needed 220 MHz bund into a screaming mess of CBers . if 1 may put the case to you factually and unemotionally . . . then why not drop a line giving your thoughts to one or two oi the members of the Electronics industries Association Executive Commitee You might write to the Chairman of the Executive Committee, Richard Horner, L, R Johnson Company. Waseca MN 56093. Or you might get in touch with Andy Andros. the president of Hy-Gain...

Sanken Hybrid Audio Amplifiers And Supply

10 Watt RMS Amplifier 4 75 25 Wait RMS Amplifier - , 14.75 D 50 Watt RMS Amplifier S22.50 P Complete kit for 100 watt rms stereo amplifier 2 U watt musi l including two SO watt Sanken hybrids, all parts instructions, and nice 1 16 thrck bfack anodized and punched Same for 50 watl rms stereo amplifier includes two 25 watt Sanken s H etc 58.00 Same for 20 watt rmi stereo, includes two TO watt Sankens, DIGITAL CLOCK KIT WITH NIXfE DISPLAY

Standard Hustler Resonators

Hodel RM-10 10 meter resonator Model RM-15 15 meter resonator Model RM-20 . 20 meter resonator Model RM-40 40 meter resonator Model RM-75 . ,75 meter resonate Model RM-80 _80 meter resonator SUPER HUSTLER RESONATORS Legal Power Limit Mode RM-10S 10 meter resonator Model RM-15S . . 15 meter resonator Model RM-20S 20 meter resonator Mode RM-40S 40 meter resonator Model RM-75S 75 meter resonator Model RM-80S 80 meter resonator The onginai hinge and sleeve clutch mechanism. One Setting for TOTAL...

Vanguard Electronic Labs Hollis N V

In addition to the many solid state counter, we have been able to read the VHF UHF preamplifiers and converters frequency of hand-held portables up to a that Vanguara Laboratories make, they have few feet away. Also, by placing the scaler entered into a new product line a VHF and counter in the house pointing out the prescaler. T ie model FS-160 is a prescaler or window to the driveway, we can very easily decade frequency divider that is guaranteed net the FM mobile rigs we have around. to...

Amsat Activities

Mike Frye WBSLBP 640 Dauville Dr Day ton OH 45429 The Radio Amateur Satellite Corporation AMSAT was formed in 1969 to provide amateur satellites and space experiments for the amateur service, Mem bership currently numbers 460. including over -40 member societies, and is worldwide with amateurs from some thirty countries represented. AMSAT is currently active in preparing for the launch of AMSAT- SCAR-C A-O-C . scheduled to go up in July, 1972. A-O-C will feature a 24 channel Morse code...

Iuuumnc

925 Sherwood Drive Lake Bluff, IL 60044 In the past I have had the unpleasant experience of trap failure on both dipoles and verticals. This usually occurred while running a full KW on RTTY. Not only would the trap go but usually the final tube, too, unless I happened to catch it very quickly. When you open the box in which the DGA-4075 was packed, you are immediately aware thai the traps are quite a bit larger than the two-inch types usually found on most trap dipoles. The traps supplied by...