A Computer
Get optimum performance band for band Choose from medium or high power resonators tor your favorite bands. Fotd over. 360 swivel mast for quick band change or easy garaging Select from two versions, tender deck or bumper mount location Stainless steel ball mount, 180s adjustable, commercial duty for superior mechanical and electrical performance Get exceptional reports, broadest bandwidth, lowest SWR Use with any convenient length 50 ohm coax Matching devices not required For convenience use...
meter antenna 1
At last A high performance, 2-meter antenna that combines state-of-the-art electronics, corrosion-free fiberglass and take-apart design for true portable use. The Hy-Gain 272 is an entirely self-supporting 21' omnidirectional antenna system that separates into three pieces for transport. It consists of 4 stacked 5 8 wave radiators with three 1 2 wave phasing coils and a 1 4 wave decoupling system. Each section length is specifically computed to completely eliminate end-feed pattern tilt keeping...
Info Yke
PACKARD No Re ecfs or R tests hers You Want Quality Vchj have It witn this popular 0.3 LED. by Hewtolt Packard Fits Standard I C. Socket. Flight hand OP 5062 7740 - Common Gaihode 1 A big 50 incfi assy to read character Now avail ab e neither common an e or common catho e. Take your pick. Super low current drain, only 5 MA per segnrtent typical.
Kaufman Balun
Patent No. For di poles. D219106 b tm. inverted and quads KAUFMAN t gt W Irsfcj alor with BALUfH S 1 3. 50 KAuFWAJ Cantor fnk lOr without fiALUN S 8- 50 Fly tnftanrt tontine amp Ofi amp ri d and clr ny
Vhf Engineering
Bob Brown W2EDN. just back from one of the Windjammer cruises the Caribbean, is really hot for a good design engineer to help him work up somp new products, If you know of anyone who likes to do that son of 'work ' have them get in touch with Bob, Bob is looking for someone with a lot of background in PC board layout and design and he's got a dhrned ijood salary ready for some one The Binghamton area is a nice one ,. I gat her that Bob and his family enjoyed the cruise , we've been advertising...
Z
coincide with center hole of the dowel. Solder a 3 piece of center conductor from coaxial connector. Fish the loose end of wire up through the wooden dowel and oui the side of the plastic insulator. Next, fill in the PL-259 connector with epoxy and set the wooden dowel into the connector. Be sure to pull the center conductor wire as you work the dowel into the epoxy. Let epoxy set up until hardened, Next, wind a coil using 12 copper wire l 2,r ID, 4 turns . Bend the ends of the coil and leave...
imiLINE INSTRUMENTS Inc
Box 473, Hooksett, New Hampshire 03106 .Uli. Mj.n Su . tthrilnrd K1A U rL.h Mhnm HI Jllh-fl flL .Uli. Mj.n Su . tthrilnrd K1A U rL.h Mhnm HI Jllh-fl flL About ten years ago, the Summer Institute of Linguistics SIL here in Brazil was granted permission to use radios for communication between our centcrs and remote Indian villages- SIL is working here and in other countries with people who speak some of the more than 2000 unwritten languages of the world. Our purpose is to learn these languages,...
Ill Lu
The HAL ST-6000 demodulator keyer a nd I he DS-3000 and DS-4000 KSR RO series of communications terminals are designed to give you superlative TTY performance today and in the future, DS series terminals, for example, are re-programmable, assuring you freedom from obsolescence. Sophisticated systems all, these HAL products are attrai. tively priced for industry, government and serious amateur radio operators. The HAL ST-6000 operates at Standard shifts of 650 425, and t70 Hz. The tone keyer is...
A Cwr
16vdcat37ma utput voltage 6vdc lnput-1 SvRMS 12vdcinput-3.5vRMS 16vdc input-4-0vRMS K-1 Field replaceable, plug-in, frequency determining elements 3.00 each W. G. Moneysmilh W8KUT 21 740 Military Dearborn MI 48124 T he majority of the commercially made two meter FM hand-held transceivers today have I or 2 Watts output into quarter wave antennas or rubber ducks. There are many times when an FM operator wnuld like to have a little more gain to work out better from poor locations. This article...
Uncomputer
lot- .Jriuiifftg AJtf . -- S fC - . y -r- irmi H i e comp j p - yiiflrr fen . -.ni KnybO 1 T mwltlM o gt m iUin Hi.-MICRQAL fArrt tonvjrmr rmf video Ouan wifh Qrftihjo CJpJtHi'TV CP'J ROM.'R AM bc il harkfilafMf rt'fh piTrtir lupp'lv PT1 cahlrtfll Ih CPU board melud an Q08Q rticenor. 51 Uytf, at RAM, qpqce Fot 3K byt i o HOM anH v cTared nief rupit. Several CPU tmait i may b gt plugged rUo ihe lam tuck plane Icirpurallal procesung Th ti ckpl rw dmgf 4t un qo ii ihat if ah owt m ny batkptamn be...
Federal Communications Commission
This Notice was received too fare for inclusion in the February, March and April issues. Please be advised that we have the unique situation of having recovered a Unimetrics Ultracom 25 with no obvious fD or serial no. Would you please change your lost column in 73 to include found Request that interested people contact David M. Si oner K8LMB, 619 Doepke Lane, Cincinnati OH 45231 Keep up the good work with 73 I love it. HIJACKED RF Comm. Inc. RF 403 two meter transceiver, s n unknown. 4 Chan....
From Genave
144 rreter FM, IK channel com frnat.cns, 12 watts IncL 223,5 MHz 1V4-Meter FM 100 Channel Combinations 12 watts Separate controls for independent transmit and receive frequency selection . . . Pre-selected paired frequency lock allows one knob operation . . . Backfighted.
Kit Asm
SPHERE 1i rMity pni melody tJu- iotbti la-EhSO Ji tnl-croprnccstor. 4K RAM. IK EPROM containing jn EDITOR, A55EMI1I FR. lit lll.lt, Gtfi COWMANIJ ANCllAOt, CASStm LOADER, Ptl.Mrtk LFTILtTlfSi, a HE Al.- I iMt CLOCK. p ut ill character vfeteo tntwtn p. with iijli Asa I krybci rrf jntl numLbirc. cuir gt 4' keypad, po ir , chassis, rn.inudEs, and js l ialvd parts SPHf KF 3 Includesill - 'u-- - SPHERE l pluv serial omfhuniCJ-tions, jtjuttto fji riu- or MODtM innate. SPHERE 3 inli.id H th - iejhjre...
A Dark Horse
ver have a run of luck when nothing goes right You know, when 11 seems Irke the gods have things stacked up against you. That's just the way 1976 began Actually, it began in early December when some low creature decided that he needed my tcom IC2F serial -4893 if you happen 10 run across it more than I did and went to the trouble of purloining sand radio from under the dash of our '63 Cadillac. 1 said trouble, since ii no being my nature To Trust mounting brackets and such, I had drilled three...
Ij
switching techniques, so the circuit shown should be usable Without modification. Time has prevented more ideas from actually being tried out, but we would like tt 1 pass on a few applica tion hints which might suit individual requirement First Repeater antennas can be switched by tone from mobiles or remote pom - tt1 gt ro de more favor ablle selected ar-a communication A timer or second tone can restore normal condition. Second Two antennas can be switched in a mobile to offset un desired...
Info Fes
LM3 1AM 1.10 UM331hi 1.35 UM302N 1.30 LM33 amp M 2.20 LMI3Q2H 1 40 LIV1320-5K 2.90 LM307M 1.50 LM340-12K 2.60 L M 308 AH 5.00 I.M340 10K 2.60 LM30BD 2.25 LM340-24K 2.60 L M 300 M 1L00 LMS66CW -70 L M 309 H .75 LM55GCM 1.30 LINEAR ICs M-MINJ-DIP D ceft-DlP K TO'3
Insulator
rrr r u,' '. gt gt J fs .'J ' J A-1 'rYrr77T7s rrr r u,' '. gt gt J fs .'J ' J A-1 'rYrr77T7s Fig. 7. One way to avoid publicity is shown here, it possible, wire sma i enough not to be seen, but strung low, wil do a good job. I believe is a functional all-band antenna system thai anybody can use successfully, which is something that most other articles discussing antennas for urban dwellers seem to ignore. To start, let's be honest about one always overlooked fact the utilization of an indoor...
Tempo VHFONE
the ONEyou've been waiting for No need to wait any longer this is it Whether you are already on 2-meter and want someting better or you're just thinking of getting into it, the VHF ONE is the way to go. Full 2-meter band coverage 144 to 148 MHz for Transmit and receive. Full phase lock synthesized PLL so no channel crystals are required. Compact and lightweight - 9.5 lornj x 7 wide x 2.25 high. Weight -About 4.5 lbs. Provisions for an accessory SSB adaptor, 5-diyit LED receive frequency...
Info Uwj
equivalent. These little multi-pin black boxes'' more often lhan not have a group of gates l hat seem to gel overlooked quite often. Blanking, strobing, etc., are the very reasons these gates were built into the IC, so it is a shame to overlook them at the expense to our pocketbooks There are two pins on most of these ICs, referred to as the ripple blanking output RBO and the blanking or ripple blanking input RBI tines. Hooked together properly, these pins can be used to blank out what are...
X Crystal Oscillator
TRADES TAKEN ON NEW EQUIPMENT WE PAY SHIPPING VIA U.PSOR BEST WAY ON ALL ABOVE ADVERTISED ITEMS. SATISFACTION GUARANTEED, ALL ORDERS EXPERTLY HANDLED TO ASSURE SAFE ARRIVAL WE ACCEPT MASTER CHARGE. N.C. RESIDENTS ADD 4 SALES TAX. PHONE BILL SLEP 704 524-7519. . P.O. BOX tOO, HWY. 441, DEPT. 73, OTTO, WORTH CAROLINA 28763 ptus 2.50 shp j. amp hndlg. .Stainless steel bands 5.50 NY residents please add sa es tax