Semiconductor Sale

G 2 25-amn Silicon Power retts. sturt JO Famous CK722 Transistors pnp IS npn Transtrs, asst types & eases IS pnp Transtrs, assi types & cases O 2 5 mc Mesa pnp Transistors 2 Mesa npn Silicon Transistors 4W G 3 20W transistors, 2NI320 unp, TO JO H a One Watt 2N341 npn, sU., T08 3 Zener 6 volt diodes, J watt axtaJ J t 2DW Silicon Mesa, npn, 2NI648 3 iD PNP Switching Transistors H 6 Texas 750 mil 4O0v Rectifiers J 2 N7t 8 npn sil, Pianar. IQQ mc I 2N7D5 300 MC. 3(10 M W, ill., npn 1 3N35...

Fig I

Electrical expansion of a 2Vz long scaSe to read the 25 to 30 volt dc segment is equivalent to a conventional meter with scale over two feet long. Fall has come. The WX is cooling down. Condx on 80 40 20 are improving, 15 and 10 are perking up a bit and will improve. VHF activity is at an of I time high. So we say DO tT NOW Call, wire or write us for your needs in new or used gear. AMECG ON NUVtSTOR 2 Meter Converter and Power Supply 28-32 MC iF 35,00 CENTRAL ELECTRONICS 10B Rack Mount 69,00...

Kip

Inspite of muddled reporting in other ham magazines, the K3IOP case has been settled satisfactorily with an Order by the FCC granting Seaman an unrestricted General Class License, i 1963 he had been issued a General license which had a condition prohibiting operation in the 50 mc band. it has been a lot of fun operating up on my mountain, but the time comes when 1 really have to be practical. I can see now that I am not ever going to have enough time to do an adequate job of setting up and...

Columbia Electronics

4365 WEST PICO BLVD., LOS ANGELES 19, CALIF. COLLINS 51 14 or 51J3 Wanted. State condition and price. Phone collect person-to-person. Mike Ercolino W2BDS. Telephone 201-775-7252 ARC-3 TWO METER XMTR 100-1 SSmc, 8 Remote Xtal controlled preset channels, with two 832As, two 6L6 modulators & 5 other tubes & schematic. Excellent. RT-82 APX-6 TRANSCEIVER 1296mc, Complete with 31 tubes. Excellent condition. 15,95 ARC-1 TRANSCEIVER 2 Meter AM, 100-156mc 10 chan. Xtal controlled, ANL, AVC &...

Po Box A

Lite Navy type ATJ-ATK. NEW 17,50 R23 ARC5 190-55OT kt. The GOOD 21,75 CUMRA Coupler. VV 13 I-tube amplifiers tubes . KX 4.75 RT82 APX6 < 1omortt to 1215-mtf mc X'eeivat . . NEW 21.75 TS72G UPMS Tests APS6727 Tubes, 10 Diodes . GOOD 14.50 UPMB Manual Narships i 1537A . Postpaid NEW 2.90 Coa* Cahie Connects UPM8 to APX6. Inel. CN-1S0 NKW L90 NT 18 A RCI i00-15 mc X* civr, W tabes & VSJ GOOD > 22 7,r> MT230 ARC Mounting for ARC1. ARC4 and ARC12 EX 2.85 RT58 ARC 2...

Sidebano Engineers

So, San Francisco, Calif. An operation of Webster Manufacturing for SB-33 (only) Quiet entirely solid-state. Export sales Raytheon Company, International SaJes & Services, Lexington 73, for SB-33 (only) Quiet entirely solid-state. and soldered copper-clad bakelite, with perhaps one wall of thin brass where connections are made on Both sides and a 50 mmfd timing capacitor, you get 20 db gain on reception, good filter action, and plenty of watts out on transmission. Reasonable...

Motor Winch

The E-Z Way Motor Winch raises and lowers towers to any height without guys. When towers arc motorized a larger beam can be used because the tower is normally lowered to safer elevations. Standard features Combination worm gear drive totally enclosed motor and gear box remote control switch spiral grooved winch drum positive crank down and limiter switches. Assembled complete with hardware and instructions, just 389.50 for TORBZ 66-3 399,50 for TORBZ 75-3 and 495.00 for TORBZ 88-3.

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Ham Radio Whitehouse

JOHNSON'S EFFORT *TD CUT DOWN ON THE WHITE H0U6E ELECTRICITY BILL 'ONCE AGAIN YOU SHOULD LAND AT 0935 GIVE ME A CALL AT 0940 ON 7036 KC THEN WE'LL TRY ZO AT 0950 ON 14.036 THEN ON 15 AT 1000 ON 2L036 R16HT ON UP THRU THE BANDS SEE YOU NEXT THURSDAY. AND DON'T F0R6ETTD QSL EVER SINCE Hg GOT IN THE WHITE HOUSE, HAM RADIO IS REALLY THE Bie THING- I'VE FLUNKED THREE SENATORS, TWO REPRESENTATIVES, AND A GOVERNOR SINCE MONDAY IT*3 NICE TO KNOW THAT'lf THE 'HOT UNE'...

In

100 volts 200 volt-l 300 volts 400 volts 100 volt5 200 voll-200 volts 400 volts 100 volts 200 volts 300 volts 100 volts 200 volts 50 volts 100 volt 3 l > 0 volts 300 volts 300 volt* 50 volts 100 VDJLH sigma extra-sensitive precision relay- series 5f DC general ptirpose sen3i- fl& L iwt-6 willard 6-vglt storage battery Rated 2.4 amp. hr, Approx, dimensions h. Weight I lb 3 oz. (plastic ase) Dry-charged Brand new, In original a -i fp s paching was accessories* Nf Messures 10 to 30 dbm. ST00...

Converter

Redline Electronic Keyer Super - Kit Gives perfect code, from 5 to 50 wpm Built in speaker for sidetone monitoring Built in transformer power supply with silicon Gives perfect code, from 5 to 50 wpm Built in speaker for sidetone monitoring Built in transformer power supply with silicon 4 wide, 5Vi high, 8V2 deep, 5 pounds Sockets and terminal strips riveted in place High performance, stable computer circuits Plug-in high speed mercury contact relay Kit is complete with aluminum chassis, blue-...

Info

T 4 WAVE STUB OPEN WIRE OR 300 OHM TWINLEAD 2 Vz waves in phase 2 refectors one behind ment t 4 WAVE STUB OPEN WIRE OR 300 OHM TWINLEAD 2 Vz waves in phase 2 refectors one behind ment meter bands, the author included antennas for these bands on I he same structure used for the Compact 20 Meter Beam he center of the 15 meter dipole is mounted to the vertica bamboo pole about a Foot above the angle irosn, the ends secured near the ends of the horizontal lower poles. The 10 meter dipole is spaced...

Khtb

That, although the concept of noise figure as a measurement of receiver sensitivity has been around for nearly 20 years, it has been so surrounded by confusion that many people have simply rejected it rather than try to cut their way through the morass of conflicting data. So let s try to cut it free of the confusion, once and for all- Ready Let s go. First, what is all this noise jazz anywey Were all familiar with the faet that sometimes an incoming signal is just too weak to hear. Down in the...

Henry Radio Stores

Worfds Largest Distributors of Amateur Radio Equipment 11240 West Olympic Blvd, 931 N.Euclid Ave. 431 E. Green Street Butler lt Missouri Los Angeles 64, California Anaheim, California Pasadena, Californio 816-67 9-3127 213-47 7-6701 714-7 72-9200 213-684-0861 Most people who have had occasion to work with UHF are aware in many cases, painfully of the severe inadequacy of the conventional crystal or tube mixer type converters commonly used above 400 mc. The most expensive diode mixers will,...

Varactor Tripler Schematics

Varactor Tripler Schematics

HAM GEAR . , , for receivers, transmitters, as weir as the smallest accessory amateurs everywhere make Lafayette their headquarters tor air their gear. CITIZENS BAND STEREO HI-FI TEST EQUIPMENT TAPE RE CORDERS P,A. EQUIPMENT TOOLS BOOKS and MUCK MORE See f he Largest Se ecf on in Our 44-Year History BUY ON TIME Use Lafayette's famous Easy-Ptry Credit Plan . , . up to 24 Months to Pay Fig. Equivalent circuit of a varactor diode Rs is the lost resistance of the diode, and is kept low for high...

Special Club Discounts

Your CARD ACTUALLY reproduced in PERMANENT METAL, THEN MOUNTED ON A Fir,E ---T t CLASP- WEAR YOURS WITH PRIDE. ORDER ONE tODAY-JUST SEND YOUR AND MM P P ANGFf i C1 TO he may have everything but he doesn t have THiS BOX 73. NORTHFIELD. OHIO 44067 GIFT SHOP For the price of a self-addressed stamped envelope you can learn the real details which others have attempted to obscure .in CQ, the Washington News, and elsewhere. CUKE . . . A discussion of the tetters to the editor of CQ appearing in the...

Laboratories

Gain is not great enough, but nothing can improve it. And here is the importance of the emphasis on noise figure, ft provides a measurement of the relative merit of two different circuits, which is not dependent in any way on noise bandwidth present, and which tells us instantly which of the circuits will degrade the incoming signal the least By using the stages-i 11-cascade formula, we can avoid being trapped by the 0-db noise figures of smal chunks of wire, but we will always know that a...

Big Modern Plants To Serve You Better

2 in Fort Myers 1 in Los Angetes send for NEW FREE CRYSTAL CATALOG with NEW TRANSISTOR OSCILLATOR CIRCUITS Bill Hoisirygton K1CLL 83 Bellevue Ave, Melrose, Mass, If you are only interested in construction, skip these paragraphs - Bui I assure you, there's plenty of meat here for anyone seriously interested in the amateur UHF art. Or perhaps it should be the art of being a U11F amateur The name 432'er has several implications. The famous TWO'ER low cost, running about a watt or so out, with an...

L

With resultant splatter, was most difficult to avoid and spread of the calibration signal, due to the almost infinite number of audio harmonics resulting from the sawtooth output of the neon oscillator. These difficulties were not insurmountable, but made the neon-pulsed calibration oscillator a most tricky device to put into, and maintain in, satisfactory operation. For thoroughly satisfactory operation, a modulated calibration oscillator must have the following attributes 1. A stable high...

Meter Converter With Nuvistor Preamp

Uobeaiftblc performance ai an unrentable price, Onlj 310.00 PtHl Complete with BUS A. 6CW4 rufres and choice of 8S cm. cryaui for 14-J8 mc output or 49.4 mc. crystal for broadcast hand output. Fully s mbled, tented and guaranteed. Benaltlvltr 1 mlnrninlt Not fluute U.5 dbt VANGUARD ELECTRONICS LABS Dept. H-IO litti-48 99th Ave. Mollis N. Y. Everybody says that the people at COLUMBIA ELECTRONICS need their head examined for paying such ridiculously high prices for used surplus electronics Be...

J

Circuit for determining zener diode Operating point and the value of Ri, Complete schematic diagram of electrical expansion network. Circuit for determining zener diode Operating point and the value of Ri, Complete schematic diagram of electrical expansion network. in series with the movement and a voltage source will indicate the full-scale current with sufficient accuracy. If a milliamnieter is to he checked in this manner, he sure to include a very large value of rests la nee in series with...