Wvg Mark Ii All Band Vertical Antenna

Low cost self-sup-poring 10 - 80 meter antenna. Tunes 3.5 30 Mc with manual tap adjustment. Feed with 52 ohm coax. Quick installation, Amazing efficiency for DX or local contacts. Used as portable antenna also- Overall ht. 18'. Tubing diameter 1 1 4 to 7 16. Max, unguyed wind survival 50 mph. Mtg. bracket for 1Ye mast, Wt, 5 lbs. Maximum power 1000 watts AM or CW 2 KW PEP, Omnidirectional. Vertical polarized.

Universal Hybrid Coupler

Identical to 300 hut without the Cnmpreamp WA1ERS UNlVtRSAL HYBRID COUPLER and PHONE PATCH - 3001 I 3002 SPECIFICATIONS Input Impedances- Lin fcOt) ohms nominal RX Output-- ohms nominjl iv-irier with receiver output control). Mike H h impedance crystal oj dynamic, lape Recorder Speaker - ohms nommai. Output impedances To Tape Recorder z meg, ohm To XMTR 50K ohms nominal RX SPKft 4 ohms nominal 569,95 (less battery) 549,50 (less battery) The per foi ma nee of a lossless antenna will remain...

Info

Write for our Special Transceiver Packet Lots of turn over this past month and this new fisting includes many new items* Remember these are fully reconditioned and guaranteed compter satisfaction. 73 Stan Burghardt W0BJV CLEGG INTERCEPTOR S& 2 Meter Receiver COLLINS 75S-3 Receiver (like new) GLOBE CHIEF Deluxe Transmitter GLOBE SCOUT 680A Transmitter GLOBE PSA-63A AC Supply GONSET GSB-1CQ Transmitter HALLiCRAFTERS HA-2 & P-252 mtr Transvsrter HALLICRAFTERS S-40 Receiver HALLiCRAFTERS...

Rw May Bargains

OIL CAPACITOR 25 MFD, 2500VDCr ceramic insulators. XInt S.S.B. xmtr power supply output filter. Westing-house, 8 x 4 x 14 H. Brand new. 12.95 HIGH VOLTAGE PROBE Rated to 50KV with V0M or VTVNL Has 500 meg Hi voltage resistor. A Large quality probe that sells for over 12.00, Brand new. 2.95 L& N KEIVIN-VARLEY PRECISION VOLTAGE DIVIDER 20K ohms. Ratio 1 10,000, accuracy 0.01 , with lOOua galvanometer. Ship, wt. 37 lbs. Used good. 49.50 POWER TRANSFORMER STEP DOWN 24V. 10A. With F.W. Bridge or...

West Pico Blvd Los Angeles Calif

Hanadnoek, the highest peak In southern New Ham Shirt , in one of il- mo1 exciting VHP loca Lions you could usk for. The Installntion consists of a uix room house, newly painted mtl newly roofed, a I wood paneled inside, four ucrcfi uf ground , , . the only private property on the mountain, all conveniences, five radio towers, the highest boiiifff 120 feet, beams up for 2Q-15-1Q-G-2-22G-432 anrl ii dish for Complete with ham gear if you liko , . . receiver* and comortr for all...

INPUT

Fig. 2t Low-norse two meter transistor converter, Q) and Q2 are 2N2360, 2N 742, 2N2495, etc. Q3, Q4 and Q5 are VHF transistors such as 2N2084, 2N1743, etc+ Fig. 2t Low-norse two meter transistor converter, Q) and Q2 are 2N2360, 2N 742, 2N2495, etc. Q3, Q4 and Q5 are VHF transistors such as 2N2084, 2N1743, etc+ SLUG-TUNED F RM-1T. LtNK OVER COLD END l4,l5- 7tenam. on 3 b slug-tuned FORM - YzT. LfNK OVER COLD END enam on 3 3 slug-tuned form - it, link over cold emd al signal, this means the...

WATERS

WIDE RANGE ATTENUATOR Model 371 & Modet 372 he new WIDE RANGE ATTENUATOR is an accessory device lesigned to provide stepped attenuation of signals in eceivers. signal generators ana omer iow-ievel radio requency equipment (converters, etel The WIDE RANGE TTENUATOR installs in the coaxial line using either HF or BNC connectors. Attenuation steps are selected nth rocker-type switches marked in decibels. here is 10 insertion loss with switches in OUT position. WATERS LITTLE DIPPER...

Wausa

An answer to the fantastic distortions in the Washington Amateur Radio Newsletter (mouthpiece for ARRl Hq) June M issue. Of slight interest onlv if vou had the misfortune to get a copy of the WARN bulletin. 37. Ditto WARN July 64. More trash . . . lies . . . and mudsJingmg. Fortunately the Foundation for Amateur Radio in Washington seems jto have been able to stop this poisonous publication, 33. Those few of you who read the July 64 issue of CO and found the wealth of 73 publicity m it mav...

Wcky

The notch filter is very effective in taking out QR f and heterodynes. The 100 kc calibrator is included. One of the real bonuses of the DR-30 is the noise blanker. It's not just an audio noise limiter. It picks up the noise pulses before the selectivity of the receiver lengthens them and uses the pulses to turn off the receiver for the minute duration of the noise. Its very effective in getting rid of all types of pulse-type noise. The case of the Davco is heavy steel with a hard, scuff and...

Figure E

That the price was 11.00, I decided to forget all about it. This variable resistor is actually a sensitive photocell and a small light bulb sealed together. A photocell will exhibit a very high resistance across its terminals with no light striking its face, and a very low resistance when exposed to a quantity of light, I started experimenting recently, and found that an Am-perex ORP63 cadmium sulphide photocell exhibited the resistance characteristics that were needed. This cell is very...

Ri

Even a ham does not get something for nothing anymore, but this kw power supply is next to it Compared to the cost of a conventional supply, you can have money left over for a new hat for the XYL, new shoes for the baby and cold 807 s for the OMl The transformer, about 1000 volts, at 500 ma or more, can be easily found on the surplus market Mine is 1000 volts at LI amps Pacific Transformers 20046, from a radar power supply. Caution do not go much above the 1000 volts across the secondary or you...

Radio Equipment

Waters amateur radio equipment is Convenience Engineered to make correct operating practices easier while assuring superior performance. The Waters trademark is a guarantee of the finest that advanced engineering skill and sound manufacturing principles can produce. Good clean signals and maximum efficiency are usually the result of proper adjustment using reliable test equipment. Waters Test Equipment provides the means to get the most out of your equipment.

Semiconductors

W elcome to the first of the monthly 73 semiconductor columns. I will write this column lt gt n the assumption that most types of vacuum tubes are obsolete, so will try to devote a good bit of the column ro practical transistors for the ayerage ham. At the same time, I'll try to tcH you about the latest developments in semiconductors even if some are a little beyond the reach of most of us. II be happy to hear about what you are doing and what you are interested in. Let me know about the...

Datakoat Protective Coating

Specially designed for all INSTANT LETTERING dry transfer products. Water-clear, dries quickly and protects against abrasion and weathering, Particularly effective on metal and other non-porous surfaces. Protective Coating Kit contains 1 oz. bottle of OATAKOAT with applicator brush cap and 1 oz. bottle of thinner. No, 0417B 1 00 Quick drying Spray Coating in handy 16 oz aerosol can. Not 04177 2.95 r l s i i Birlri-i r S-t rt r All the necessary letters, fetter combinations and numerals for...

R Z K

A typical 90 rf phasing circuit Fig. 3a. A typical 90 rf phasing circuit Fig. 3b. 90 rf phasing circuit preferred by author due to voice wave complexity, The diameter will vary, but the pattern will remain essentially circular. i he Schmidt phaser makes use of the driving transformer inductance and the coupling capacitance, C1 to accomplish the 90 phase shift, i heoretically this can occur at one frequency only. It is believed that Rx and P1 effectively lower the Q of the resonant...

Waters Coaxial Switches

Waters Coaxial Switches are designed for panel mounting and feature in-line orientation of the coaxial connectors. They occupy minimum space and are readily accessitHe tor connecting and disconnecting. Waters switches add to the station appearance, are easily installed and pro vide efficient and convenient switching techniques. SPECIFICATIONS internal Construction Cetamic switch with silver plated conductors. Power Carrying Capacity 1000 watts. Insertion Uss Negligible, VSWR Less than 1,2 up tQ...

Universal Hybrid Coupler Ii

The Universal Hybrid Coupler II is an excellent phone patch that connects receiver and transmitter to the phone Mne for remote voice operation. Provision is also made in the Coupler to connect 3 tape recorder for both recording and playback of station QSO's the tele phone line. The hybrid circuit provides tor effortless VOX operation of the phone patch. A built-in Compre ampL speech preamplifier imiter serves to increase the level of weak phone signals and also to avoid over modulation when the...

New Hygain Doubletstake Maximum Legal Power

Super-Strength Aluminum Clad Steel Wire Install Horizontally or as Inverted V Weatherproof Center and End Insulators Installed horizontally or as an Inverted V, new Hy-Gain Doublets with Hy-Q Traps deliver true half wavelength performance on all bands. Completely factory pre-tuned SWR less than 1,5 1 on every band. Super-strength aluminum clad single strand steel wire defies deterioration from salt water and smoke will not stretch withstands hurricane-like winds. Easily installed with famous...

Waters 359 Compreamp

The COMPREAMP Audio Preamplifier Limiter increases the effective speech power output of a transmitter up to four times, Self-contained and battery powered, the two-stage transistorized COMPREAMP is designed to he used with all types of transmitters. COMPREAMP connects between the microphone 50,000 ohm dynamic or high impedance ceramic and the transmitter microphone input connector without any wiring change. Provision is made for switching the Compreamp in and out of the circuit and for...

Ax

Biock diagram of W9IDP SSB exciter is really what is referred to as systems engineering, which means making the components in your station into an integrated system. In order to complete the systems engineering of the station layout, and some hams do encounter trouble in this department, the arrangement of Fig, 6 is suggested, A 6.3 volt filament lead is brought out from the power transformer to operate a pair of good quality 6-volt ac relays. Iiese will key well up beyond 25 wpin, so...

Buddy Nuvistor Preamp

Small size 2 x 2W fits anywhere Completely wired and assembled Simply installed gL CB mode 7.95 Aufronics Corporation 180 North Vi edo Avenue Pasadena, California Raduees interference and Nolte on AJI Make Short Wavo Receivers. Makes World Wide Reception Stronger. Clearer on AM Bands For ALL Amateur Transmitters. Guaranteed tor 600 Watts AM 1200 SSB Pi-Kit or Link Direct Feed, Light Neat, Weatherproof, Complete as sfrown total length 102 ft. with 96 ft. of 72...

All New Element Thunderbird Dx Model Thdx

Features wide spaced elements on a 24 ft. boom. New Hy-Q Yaps provide true full-si ,ed performance. Feeds with 52 ohm coax - Beta Matched for optimum gain maximum F B ratio without compromise. SWR less than L5 l on all bands. Longest element, 32 ft.- weight, 47 lbs. Model TH6DX, 139.95 Net. NEW, IMPROVED 2-ELEMENT THUNDERBIRD MODEL TH2Mk2 Compact installs almost anywhere,., delivers excellent performance. Features new Hy-Q Traps. Feeds with 52 ohm coax -Beta Matched for...

Service

J 1320 19th Street I'm interested j 0 Enter order For equipment listed on attached sheet I Send Galaxy III and V literature, I Q Send quotations for trade in allowances on equip j ment listed on ottached sheet. EDWARDS ELECTRONICS whose personnel includes There's no excuse any longer to put off getting on ham TV. ATV Research has done the difficult part of the work for you Their model 65A Focus-Deflection Coil Kit furnishes all of the special hard-to-make parts for your camera, Included are...

Ewf

TIH T2tT3 - Siancor Of Simitar, crumble wound Litz wire on the diameter orai between Lx and Ninety-degree phased Ludio is brought to the suppressor grids hrough leads A, B, C, and D. Fig. 2-a is an audio phase shifter for driving i type of dual balanced modulator.0 It uses a nanufactured plug-in R-C 90 audio phase hift network, i ig. 2-b is the authors original 30 audio phase shifter for driving the bat meed modulator of Fig, 1. It is called the Schmidt phaser with due respect to the orig-nator...

Telrex Rotatorindicator System Model Tsrs

Mast Feeds Thru Rotator For Safe, Easier, Installation self locking by sturdy worm gears accommodates 2 d.d lt masting malleable cast masting clamp supplied will fit into or onto a stoed tower - TELREX LABS, Write for FREE PL65 Describing Rotators ond Antennas ASBURY PARK, N.J,

Hundreds Of Top Quality

ITEMS Receivers, Transmitters, Microphones, Inverters, Power Supplies, Meters, Fhones, Antennas, Indicators, Filters, Transformers, Amplifiers, ITeadsets, Converters, Control Boies, Dynamotors, Test Eaulpment, Motors, B Lowers, Cable, Key en, Chokes, Handsets, Switches, etc,, etc. Send far Free Catalog Dept. 73 aSH, SONY TRANSISTOR TV's etc., swapped for j-U, H-P, L amp N etc. laboratory equipment, special tubes, lianuals, military electronics, ENGINEERING ASSOCIATES, 43S Patterson Rond,...

Trap Verticals

New Hy-Q Traps 9 New 12 Double-Grip Mast Bracket Taper Swaged Seamless Aluminum Construction HY-GAIN'S MODEL 14AVS, the worlds most popular Ham antenna, has a new, improved successor. the Model 14AVQ, Three separate new Hy-Q 1Yaps completely factory pre-toned provide peaked performance on 10 through 40 meters. Outstanding low angle radiation pattern for DX. New 12' double-grip mast bracket insures maximum rigidity whether roof top or ground mounted. New total performance construction heavy gau...

Receiver

Covers all Ham Bands 160 thru 10 meters. Covers MARS and Other Frequencies between ham bands. Upper and Lower Sideband on all frequencies Automatic Transmit Receive Switching on CW semi break-in . Controlled Carrier Modulation for AM is completely compatible with SSB linear amplifiers Two Crystal Lattice Filters for sideband selection 2,4 Kc bandwidth, Transmitting AGC prevents flat topping. Shaped Grid Block Keying wilh side tone output. 200 Walts PEP Input on SSB -180 waits input CW Meier...