ER #220, September 2007


Issue Contents

0W7JPGHalverson,Photographs of Hams
31938 National Transmitters, Part 3, The National NSA Speech, TheHanlon,Transmitters
11Vintage Linear Amplifiers, Part 3Kuraner,Amplifiers
16Dual-Amplifier, Phased-Dipole, Concealed Antenna System for 75 Meters, AKannegaard,Antennas
16K6JEK,Photographs of Hams
24160-Meter Box-Loop Antenna, ASchivo,Antennas
27Low-Noise Modification for the HP 8601A Generator/SweeperFelton,Test Equipment
29Tracking Generator Modification for the HP 8601A Sweep GeneratorOsterwald,Test Equipment
31Hi-Fi Audio for the National NC-183D ReceiverSvoboda,Modifications
34Telegraph and Time ServiceJohnson,Miscellaneous - General
35KB0WAR,Photographs of Hams
36Radio-Electronics, Patents, and Prior ArtTeeters,Miscellaneous - General
39K7ALR,Photographs of Hams
39Operating and Service Notes for the Hallicrafters HT-32 and HT-37 TransmittersMiller,Transmitters
42Restoring the Heathkit Marauder TransmitterWaldrop,Collecting/Repair/Restoration
42Source of Audio HumBarrell,Collecting/Repair/Restoration
44More About Using Military-Surplus MicrophonesHaynes,Collecting/Repair/Restoration
456E5 Magic Eye problems and a New Electronic FormulaHardie,Collecting/Repair/Restoration
46Patent Number SuggestionAnderson,Collecting/Repair/Restoration
46Quality Hardware SourceBaldwin,Collecting/Repair/Restoration


Electric Radio #220, September 2007

Additional information

Weight3.4 oz
Dimensions9 × 6 × .25 in