Amrad Supply

Central California s Most Complete Amateur Rad o Shop, See Arnrad for the Finest in Service, Equipment, and Supp tes. 1000 watts PEP AM, CW, RTTY m Two El MAC 3-500Z Zero Bias Triodes Hybrid Tank Circuit Raytrack's own unique Toroid and Air Inductor Combination Rugged, Separate, Heavy-Duty Solid-State Power Supply fresh stock of Raytrack's world-famous in Speech Compressors. 1025 Harrison St. Oakland. California 94GQ7 Phone 415 451-7755

Learn Radio Code

As for the before the examiner jitters, I can recall when I got my General ticket the FCC examiner refused to allow a blind fellow to use a typewriter for the exam. He made him write it. The examiner then flunked him because he couldn't read the writing. I also recaJl a friend of mine who had gone with me to take thai test. He was so nervous that he could hardly hold on to ins pencil. In both cases, both were qualified but for different reasons unable to perform before Big Brother. Fortunately...

Radio Shack And Allied Join

Form Multimithon Dollar Retail Merchandising Firm Allied Radio, one of the most popular sources of ham gear in years past, has just been acquired by Tanety Corporation, parent firm of the multi-outlet Radio Shack. The result is a total chain of more than 700 electronics department stores in 48 states. To kick off the new association, all Radio Shack stores will display Allied catalogs. In time, the individual stores are expected to stock a large percentage of Allied's 30,000-item line* For the...

Model Ca

All things end, the philosophers tell us, and this installment brings our study course for the Extra ( lass exam to its close. All we have left from the 90 questions on the official FCC study list are a half-dozen miscellaneous items covering a number of relatively minor but nevertheless important points. The official questions which remain for us to examine are 47. What useful functions does a balanced modulator perform in a radio transmitter 69. What is a third party agreement What countries...

Hams

Proved ability to tolerate ali sorts of differences of opinion. We do not require the sort of conformity which would guarantee our leaders a type of authority minus checks, balances, or criticism. Our country is the best on earth because of this apparent contradiction not in spite of it And when we forsake this fundamental principle, that is the day wc will begin to deteriorate into something less than the best. The drive toward conformity ot ideas, ethics, morals, dress, manners, standards,...

Full

GT-550 80-10m Transceiver 550.00 AC-4O0 1I0 230V AC Supply 99.95 G-1000 DC Supply 129.95 SC-550 Speaker Console ____ 29.95 PR-550 Phone Patch 49.00 CAL-25 25KHz Calibrator 25.00 F-3 300Hz CW Filter 37.50 R-530 .5-30MHz Receiver 795.00 SC-530 Speaker Console 45.00 FL-5305 500Hz Filter 45.00 FL-53015 1.5KHz Filter 45.00 FL-53D6 6Hz Filter 45.00 FM-210 2m FM Transceiver 200.00 AC-210 AC DC Booster 39.95 To AMATEUR ELECTRONIC SUPPLY 4828 West Fond du Lac Avenue Milwaukee, Wisconsin 53216 I am...

Tp

This advanced state-of-the-a ky Needle is fast earning i .m special place of hdnor in tfu am-communications field, Tri-Ex akes great pride in being the eveloper and first to build this tow * for thfe amateur Uniquely eye-pleasing, the slim and graceful Sky Needle is a symbol of pride to its owner as well as proo delivery. Act now Write for free brochure, today. * Three Hi-Gain 10,15, 20m long Log-periodic antenna for mars u 13 to 30 mMz. 7182 RASMUSSEN AVE.IVISALIA, CALIF. 93277 ANTENNAS WITH A...

Magazine

20 A Practical DDRR Expensive, difficult-to-buiid mediocre antenna. 36 VFO n case you are tired of crystal control. 39 The Low-Noise 41 Experimental Remote SWR Experimental means we thiink it might work. 46 The Little Wonder Mark Proving again that almost anything will radiate, 48 CW Can Be Fun (With the Ord DK 49 Two Receivers From One 50 Factors in Coaxial Cable 52 Improving Trap-Type Vertical 56 Measuring Incident and Reflected RF VE7BS It's the difference that counts. 58 Government Surplus...

Antenna Stuff

Per 100 feel 4,95 300 chm open wire. Per 100 feet 4,65 St an doff-Mast or Screw-In 18 Copperweid. Per 100 feet S 1.19 14 Copperweid, Per 100 feet 2.95 12 Copperweid, Per 100 feet 3,99 14 Copper-Solid, Per 100 feet 4,29 12 Copper-Solid. Per 100 feet 579 Times 14*50 L Loss fiU. Per foot .18 Times 15-50 L Loss 58U. Per foot 10 Times Solid Sheath Aluroafoam in stock Kits with connectors 50 100 ft Glass Line-guy wire. Per TOO feet 500 lbs Test 3.79 Glass Line-guy wire. Per 100...

Info

Misc, Hardware - Lockwashers, washers, cotter pins, pipe clamps, etc. (See Text) Misc, Hardware - Lockwashers, washers, cotter pins, pipe clamps, etc. (See Text) 1 This is an electrical frght fixture box known in the trade as a Pancake Box -other numbers are Bowers 410, Appleton 4 CL, 3This is a Butter Dish, the Loma Classic Flair, manufactured by Loma Products, Fort Worth, Texas, available in department stores, 3The larger DDRR antennas require greater spacing between elements We found it i>...

Amidon Associates

12033 Otsego Street North Hollywood, Calif. 11607 Wavelength of 0.4 to Lf U. with peak sensitivity at O& fjL They also have a low series resistance of 10-2 max and a maximum total capacitance of 4 pF- Technical Information Center, Motorola Semiconductor Products Inc., Box 20924, Phoenix AZ 85036 The dual four-channel data selector, Fype MC4000, features high speed characterized by a typical propagation delay of 1 I ns from data iinput u> out Hit. The selector consists of inter- nally...

Hygain Electronics Corporation

Box 5407-GF, Lincoln, Nebraska 68505 The Classic 10 and Classic 15 antennas have been developed by Mosley Electronics, Inc. in order to give hams a new choice in beam matching systems, featuring the new Classic Feed System plus optimum spacing, with maximum gain, increased bandwidth, and more efficient performance provided by the better electrical balance Balanced Capacitive Matching, the Classic Feed (Pat. No. 3419872). The models, CL-10 and CL-15, incorporating the same rugged,...

Guaranteed Cubical Quads

PRE-TUNED COMPLETE PRE-CUT PRE-DRILLED QUADS ARE BETTER BECAUSE they have more gain than fiat tops, element for element Are quieter less static and ingnition noise Possess lower vertical radiation angle Require less space 14 width of fiat tops Greater capture nreat so better on weak signals-Negligible corona losses-Excellent S VR FreqT characteristic-Light weight 30 lbs tor 2 el, 60 lbs lor 4 el Detuning less from nearby objects. Your choice, bamboo or fiberglass no aluminum spreaders. Bamboo...

Henry

Olympic Blvd., Los Angeles, Calif. 90064 931 N. Euclid, Anaheim, Calif. 92801 714 772-9200 Butler, Missouri 64730 816 679-3127 I've been dying to taik about New England, and now that the boss is gone, there's no one to stop me, Wayne got an invitation to spend a few days with Jordan's King Hussein, and like a lightning flash he was gone. Now if I can get this editorial into prim before he gets back, Tm home free- The reason I wanted to talk about New England is because I am an...

Beam

Swan Triband Beams feature a patented trap design which permits precision factory adjustment. This results in maximum forward gain and front-to-back ratio from each and every Swan antenna. Their outstanding performance is comparable to single band antennas having the same number of elements. The electrical principals employed in a trap type inulti band antenna are quite simple. The trap is a parallel resonant circuit consisting of a high Q inductance with a coaxial sleeve capacitor connected in...

A V

The next pair must be 3-3 8 in. from the first pair and in line wiili them. On the centerline of one side of the box, drill two holes for 10-32 screws 1 in. from each end. In this last pair of holes, install two 10-32 x 1 in. screws with solder ugs under the head of each screw on the inside of the box. Run nuts onto these screws and tighten them securely. Install the capacitor in the box by slipping the shaft through the large hole in one end and with the mounting bars...

Broomstick

The Mark II uses the basic concept of lhe original 1 ittle Wonder antenna with four exceptions 1 I he hard-drawn copper tubing is now two sections from a discarded polelamp stand 2 the low-Q 197 turns of Nyclad wire is now a high-Q BW 3034 coil stock. 2Vi in. diameter 8 turns per inch and 135 mH 3 the Mark is tapped for the band being used and 4 the antenna can stand anywhere in fhe room due to the pofeiamp construction concept-Construction is simple and all parts can be purchased or scrounged...

Ameco

Reflectoren Merk Ameco

BOX 6527, RALEIGH, NORTH CAROLINA 27608 Fig. 3, The launching end of the sly beam. 10-gage fence wire, each fitted with a wire strainer for easy tensioning. With this arrangement there is no difficulty in obtaining the necessary 100 lb lateral load ability at 40 ft above ground, provided the guy anchors are firmly set. Fig. 3, The launching end of the sly beam. With the arrangement shown in Fig. 1 the two l iber cords are brought together to form a single cord at each end of the antenna....

Fibreglass

Never before has one antenna offered so much The GEM QUAD is a two, three, or four element antenna designed to operate on ten, fifteen, and twenty meters. Forward gam for two element GEM QUAD gives maximum gain on DX, where it counts. Optional third element easily installed has given optimum forward gain with a narrow forward cone of effectiveness, resulting in excellent rejection of unwanted signals. Front to back ratio designed for maximum signal discrimination. Toroid balun kit supplied for...

Zip

Radio Hndbk I I FM Repeater Hndbk I-IBothHndbks I enclose 10 I-11 enclose S6.95 I_11 enclose 15 John J, Schultz W2EEY, 1829 Cornelia St., Brooklyn John J, Schultz W2EEY, 1829 Cornelia St., Brooklyn nventionally placed swr meters often do not indicate the true swr at the transmission line antenna junction. Remote location of the reflected power sensing portion of an swr unit is the key to true swr value indication. athex than using a combined swr indicator and sensing unit in the transmission...

Dave Mann Kagz

1 oaniel lane, kinnelgn fs j 07 lt wb In order to clarify this situation concerning the rules for third party emergency traffic, the FCC District of Columbia Bureau was called. A man named Mr Sam Feiraro gave the caller permission to quote him directly. This is what Mr. Ferraro said Under any circumstances, emergency, that is. life and death traffic, is permissible by the FCC with any country He stated further that the Commission will not prosecute any ham for handling any emergency traffic...

Editorial By Wa Yne Green

The earphones, but still couldn't keep my eyes oft it After a couple of hours wait at London in the passenger lounge I was off again to Beirut. Vd written Bob OD5BZ there, hoping he would have time for dinner between my planes. Late that afternoon I arrived at Beirut, but no Bob-1 found out later that he was out of the country on business. put away a great Arabian meal at the airport restaurant and continued on to Amman on a Rova Jordanian Airline plane, landing there about 9 30, wide awake on...

U Multiband Beams

CL-36 for 10, 15, and 20 meters 1 KW FORWARD GAIN Compared 'scenes dipole 0 10 meters - 9,Gdb on 15 and 20 liters 0.0 c ti O r isotropic source on TO fliers 11.1 db cm 1 5 and 20 matters 10,1 dtx Mosley Electronics, Inc., announces the latest addition to the rap-Master line of amateur radio antennas, the Classic 36, a six-element tri-band beam incorporating the famous Classic Feed System, Balanced Capacitive Matching U.S. Patent No. 3419872 . Classic 36, rated for maximum legal power on 10, 15...

HAMFEST

Fhe Madison County Indiana Amateur Radio Club will hold its annual Hamboree on Sunday, July 12, 1970. Doors will open at I I a.m. at the county Civil Defense Control Center located 4 miles north of Anderson at Linwood. Activities include a general get-together and flea market. Door prizes will be awarded thru the afternoon, and refreshments will be available. Talk-in freqs, 50.4, 145.35, 146.940. commercial ads 10 per 25 words for business ventures. No display ads or agency discount. Include...

Trap vertical

Q, 15, 20, and 40 meter operation, with provision te for 75 meter add on Kit. The Swan model 1040 V Trap Vertical has a low angle, nondirectional radiation pattern, making it the idea an tenna when a larger array is not practical. It can be installed at ground level, or on a rooftop, The high Q patented traps have the same adjustable design as the Swan triband beams. Precision factory tuning results in maximum radiation effi ciertcy on each band, with low SWR across the entire band. Power...

Write For Free

Note that in the above examples only one depress-release cycle of the dot and dash keys is required. AJJ letters, numbers and punctuation marks may be generated using variations of this technique From Distributor or Direct from Factory 3201 HANDLEY EDERViLLE RD FORT WORTH, TEXAS 76118 817 268-1611 ition during these first two long days of this hectic communication problemProblems The weather was bad in the midwest and cast as the third day began. Severe storms raged over all the route east of...

Tristao Tower Co

The 11-element version of the long circular quad is designed for operation on 144 MHz up to about 146 MHz. Measured horizontal forward gain showed 15 dB gain over a dipole. Front-to-back was 21 dB for the horizontal pattern ratio and not the vertical directivity of that pattern and 1 measured 9 dB over a dipole for the vertical forward gain, and 12 dB vertical frbnt-to-back, Measurements were made on the linear scale of the SX-122 S-meter that was modified for elimination of contact-potential...