6146 Diagrams FTP
Download GIF and PDF diagrams here for the modification of power amplifier stages from Sweep tubes to 6146es.
AM Rig Modifications
From The AM Window folks. Excellent source of information.
E.F. Johnson Co. Ranger Mods
Tim Smith, WA1HLR shows his audio improvements for this rig.
Viking I and II Audio Mods
Soup up your Johnson.
Eico 730 Modulator
Improvements made to a boatanchor classic.
FT-101 Mods
Yaesu-Musen Company FT-101 series audio modifications for improving fidelity on the air.
WA2ISE Old Radios
Information, pictures and schematics. History of the All-American 5. Includes modifications, and sub-miniature tube info.
Hot rodding AA5 radios
How to make vast improvements in the typical "All American Five" tube receiver.
Valiant Mods
W8TOW describes in detail how to improve the audio on the Johnson Viking Valiant transmitter.
Radio Modification files
Files of mods arranged by brand and model, plus a few Heath.
K5DKZ
6146 conversion kit for the Drake T4X (instead of two 6JB6 finals). He also offers other kits and repair tips for radios and amplifiers.
Southeast Iowa Technical Society
Articles on modifying the Motorola Mitrek for the ham bands.
Heathkit HW-16 Modifications
WA3REY presents a number of transmit and receive mods.
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