John Riders Perpetual Troubleshooters Manual Vols 1 to 23 on a Gift Quality DVD. Includes over 45,000 tube radio schematics in pdf format, and covers the years from the 1920's thru to 1954.

Includes These Major Manufacturers:

:: Airking

:: Allied Radio Corp.

:: Andrea Radio Corp.

:: Ansley Radio Corp.

:: Astra

:: Atwater Kent

:: Automatic Radio

:: Belmont Radio Brunswick Radio & Television

:: Capehart Corp.

:: General Motors

:: Continental Radio and Television Crosley

:: Detrola

:: Dewald

:: Echophone

:: Emerson

:: Fada

:: Fairbanks Morse

:: Farnsworth

:: Firestone

:: Freed

:: Galvin

:: Garod

:: Garrund Eng. & MFG Co.

:: General Electric

:: General Industries

:: Grigsby & Grunow Co.

:: Hallicrafters

:: Halson Radio & Television

:: Hammond Instrument Co.

:: Howard Radio Co.

:: International Industries

:: Kaudette

:: Magnavox

:: Majestic

:: Midwest Montgomery Ward

:: Airline

:: Motorola

:: National Carbon

:: New Products Corp.

:: Oldsmobile Packard Bell

:: Philco radio and Television Co.

:: Pilot

:: RCA

:: Radio Wire

:: Layfayette

:: Sears

:: Silvertone

:: Sentinel

:: Sky Chief

:: Sparks-Withington

:: Sparton

:: Spiegel

:: Aircastle

:: Stewart Warner

:: Stromberg Carlson

:: Trav-ler

:: Bosch

:: Delco

:: Apex

:: US Radio and TV

:: Walgreen

:: Aetna

:: Warwick

:: Clarion

:: Troubadour

:: Wells-Gardner

:: Arcadia

:: Western Auto Supply

:: Truetone

:: Westinghouse

:: Wilcox Gay

:: Zenith

:: And many more ...