Database of schematics of Italian-made radios as recent as 1950, available in pdf format. Requires ...
Do-it-yourself repair information, valve theory, and home-made test equipment, by British collector...
Original articles on the design of crystal radio sets with additional articles on TRF and the Ediso...
Rick Botti provides the instructions issued by Pilot Radio Corporation for hooking up the T-601 FM ...
The newsgroup FAQ separated into several different pages, with topics ranging from vacuum tube desi...
A description of the classic "All-American" five-tube superheterodyne AC/DC AM radio circuit used i...
Vintage radio restoration service, by Ron Ramirez Enterprises. Features a gallery of older Philco m...
Index of schematics and tube data sheets that he has available. Hints for the repair of several set...
Provides service manuals, schematics, and reference material for technicians involved in restoring ...
Personal collection of antique radios and electronics, vacuum tube equipment repair advice, resisto...
Dave's home built tube radios and crystal sets. Schematics and FAQ.