73 Amateur Radio Today – May 1962
Issue Contents:
6M Double-sideband AM Transmitter
– Uses circuit board. Whole bunch of fellows are getting on with this simple rig …… K8AOE K8MSB 10
Two’er Modifications
– AC/dC power supply new osc. circuit. Applicable to 10’er & 6’er too …… K2ORY 16
73 Tests the Telco 201 Converter
– This six meter nuvistor converter is amazing …… WA2INM 18
ARC-5 VHF
– Inexpensive surplus rig auto-tunes to 6 2 and 1-1/4 meters …… WA2FHC 20
73 Tests the Clegg 99’er
– Everybody probably already knows that this rig is great …… WA2HVK 22
7077 Two Meter Converter
– 73 is first again with an application of this new ceramic tube …… WA6EWV 24
Four Layer Devices
– Keeping you abreast of fast moving developments in solid state gadgets …… K4CPR 30
A New Broom
– Sweep generator for aligning filters and stuff …… K6JHJ 32
All Band Linear
– Using four EL-34’s (those hi-fi tubes) 300 watts …… W9CJS 34
FSK Without Relays
– Diode keying unit replaces polar relays for the RTTY group …… W5QJR 38
Do Hams Have Fun?
– You’ll have fun with this one …… W4WQT 40
Receiver Prices
– Original prices and dates on old receivers. Nostalgia Inflation! …… W0HKF 46
The 85 B14 Receiver
– This receiver should keep you out of trouble for this month …… Bernard 50
Vacuum Capacitor Traps
– Surplus vacuum condenser units for multi-band traps …… W4API 60
Budget VTVM
– Easy to build gadget. Get out the soldering iron …… W7INX 62
Notes on Silicon Rectifiers
– We’ll have to start a silicon rectifier department soon …… K5IPY 66
73 Tests the Heath HA-10 Linear
– Another Heath rig proves out FB …… K3KMO 68
Complete Fire Insurance
– Or how to keep your transistors out of the garbage …… W6VAT 70
73 Tests the Knight RF Z Bridge and Pocket VOM
– For $5.85 and $9.95 you sure don’t go wrong …… WA2INM 74
73 Tests the Hallicrafters HT-40K
– New kit from Hallicrafters …… W3UZN 76
Propagation Charts
– What time to where when on what band… Probably …… K2IGY 78
RF Q Multiplier
– More fun with the 2N169A …… K6BIJ 80
High Power Antenna Switching Unit
– Using one of the ART-13 antenna switching units to good effect …… W4WKM 82
A Cheap Simple Plate Modulator
– The surplus Command Set MD-7 is cheap and works fine …… WA2PGX 86
Keep Your Key from Crawling
– Without bolting it to the table …… Pyle 89
73 Amateur Radio Today – May 1962
