{"id":2321,"date":"2020-07-03T21:19:35","date_gmt":"2020-07-03T21:19:35","guid":{"rendered":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-february-1967\/"},"modified":"2023-01-17T01:05:10","modified_gmt":"2023-01-17T01:05:10","slug":"73-amateur-radio-today-february-1967","status":"publish","type":"page","link":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-february-1967\/","title":{"rendered":"73 Amateur Radio Today – February 1967"},"content":{"rendered":"\n

73 Amateur Radio Today – February 1967<\/span><\/p>\n\n\n\n

Issue Contents:<\/span><\/h3>\n\n\n\n

Getting Acquainted With Integrated Circuits<\/h3>\n\n\n\n

– Here’s practical information on using inexpensive ICs …… Thorp 6<\/p>\n\n\n\n

Using Low-cost FET’s on Six<\/h3>\n\n\n\n

– Two $1 FETs and a cheap PNP give 2 dB NF and high overload resistance …… W6AJF 11<\/p>\n\n\n\n

Low Cross-modulation on Two<\/h3>\n\n\n\n

– A $ 1 FET makes an excellent mixer on two …… W6AJF 14<\/p>\n\n\n\n

The 30P1 Linear Amplifier<\/h3>\n\n\n\n

– A peasant’s 30L1: Four 811As …… W1DBN 18<\/p>\n\n\n\n

An Improved Multiplier for UHF<\/h3>\n\n\n\n

– Get enough local injection on 1296 MHz …… W6OSA 22<\/p>\n\n\n\n

A Broad-band 80 Meter Vertical<\/h3>\n\n\n\n

– 3.5 to 4 MHz with no adjustments …… VE1TG 26<\/p>\n\n\n\n

A Reliable UHF Directional Coupler<\/h3>\n\n\n\n

– Here’s a UHF bridge you can trust …… WA6SXC 30<\/p>\n\n\n\n

A Solid-state Antenna Relay<\/h3>\n\n\n\n

– Fast low-loss high-power and efficient …… K2IYC 34<\/p>\n\n\n\n

Video Camera Tubes<\/h3>\n\n\n\n

– There are lots of different types …… WB2GYS 38<\/p>\n\n\n\n

A Semi-precision Variable Capacitor<\/h3>\n\n\n\n

– It’s accurate to 1 pF and uses a component that’s in almost every junk box …… W1DTY 42<\/p>\n\n\n\n

Down with the Rotator<\/h3>\n\n\n\n

– A cheap useful scheme for small beams …… W3BTQ 47<\/p>\n\n\n\n

Mobile Logs – Personalized<\/h3>\n\n\n\n

– Save time and trouble in mobile logging …… WB6KFI 48<\/p>\n\n\n\n

Add a Crystal Filter to Your Receiver<\/h3>\n\n\n\n

– For less than $10 …… W1USM 50<\/p>\n\n\n\n

A Reactivator for the Semiconductor Activator<\/h3>\n\n\n\n

– In other words a battery charger …… K6EAW 52<\/p>\n\n\n\n

The Ancient Marriner<\/h3>\n\n\n\n

– An antenna tuner for coax-fed beams …… W6BLZ 54<\/p>\n\n\n\n

Climbing the Novice Ladder<\/h3>\n\n\n\n

– Part 3 …… W7OE 56<\/p>\n\n\n\n

Portable Operation Without Tears<\/h3>\n\n\n\n

– Useful hints for the prospective portableer …… K3LNZ 60<\/p>\n\n\n\n

Practical Tips on Transistor Transmitters<\/h3>\n\n\n\n

– You won’t want to miss this one unless you’re an AO …… K0CJF 64<\/p>\n\n\n\n

UHF-microwave Phased-locked Oscillator<\/h3>\n\n\n\n

– Stable within less than 1 Hz at 6 GHz! …… K3OJK 68<\/p>\n\n\n\n

73 Tests the Eicocraft CPO<\/h3>\n\n\n\n

– Eico’s new line of inexpensive kits looks like fun …… 78<\/p>\n\n\n\n

100 Watts on Two With Compactrons<\/h3>\n\n\n\n

– Uses two 7894s in push-pull …… K1CLL 80<\/p>\n\n\n\n

The Poor Man’s Occasional Antenna<\/h3>\n\n\n\n

– Cheap dirty and effective …… W7CSD 84<\/p>\n\n\n\n

Rewinding the Power Transformer<\/h3>\n\n\n\n

– It’s not hard as this article explains …… WB2PTU 88<\/p>\n\n\n\n

The Drake L-4 Linear Amplifier<\/h3>\n\n\n\n

– Drake’s new linear is very nice …… WlDTY 90<\/p>\n\n\n\n

The Carrier Again<\/h3>\n\n\n\n

– Part 2 of “AM vs. the Carrier” …… W7CSD 94<\/p>\n\n\n\n

A Simple Current Controller<\/h3>\n\n\n\n

– Very simple and cheap …… K5JKX 96<\/p>\n\n\n\n

Equalizing AFSK Tones<\/h3>\n\n\n\n

– Some notes for RTTY’ers …… K8ERV 96<\/p>\n\n\n\n

The International Crystal SBX-9 and SBA-50<\/h3>\n\n\n\n

– SSB exciter on 9 MHz and mixer to six meters …… W1DTY 100<\/p>\n\n\n\n

The National 200<\/h3>\n\n\n\n

– National’s inexpensive new transceiver is attracting much attention …… W1DTY 104<\/p>\n\n\n\n

An Universal Code Monitor<\/h3>\n\n\n\n

– A clever idea for a simple monitor …… K9VXL K9CLH 108<\/p>\n\n\n\n

Gus: Part 20<\/h3>\n\n\n\n

– A crisis in the Indian Ocean! …… W4BPD 110<\/p>\n\n\n