A description of the classic "All-American" five-tube superheterodyne AC/DC AM radio circuit used in the majority of consumer receivers made in North America, from the 1930s through to the '60s. Includes a tube substitution table and a typical schematic diagram.

Provides service manuals, schematics, and reference material for technicians involved in restoring and maintaining sets built from 1921 to 1936. Also includes parts fabrication drawings and high-quality redrawn schematics. The Antenna section features indoor installations from the manufacturer's instructions.

How to build your own, by Gary Litwin, using a water-powered toy rocket. Text-only, with an ASCII art diagram.

Rick Botti provides the instructions issued by Pilot Radio Corporation for hooking up the T-601 FM tuner to a typical vintage AM-only radio set that is not already equipped with a phono input. He also has also scans of the owner's manual, and of service notes for the T-601 including the schematic, parts list, and alignment procedure.

Evaluating and remagnetizing old headphones, with a Brandes pair used as an example. Originally was a presentation by Tom Provost and Gary D'Amico.

Vintage radio restoration service, by Ron Ramirez Enterprises. Features a gallery of older Philco models, downloadable schematics, do-it-yourself servicing and tuning tips, identification and dating guide.

The newsgroup FAQ separated into several different pages, with topics ranging from vacuum tube design, to suppliers, tools and test equipment, cabinet restoration, and trouble-shooting tips.

Index of schematics and tube data sheets that he has available. Hints for the repair of several sets, including a Volksempfänger VE 301 GW. List of spare parts that he has plus a list of parts he's looking for. [English and German]

Database of schematics of Italian-made radios as recent as 1950, available in pdf format. Requires free registration. [English, Italian]

The GE SuperRadio Frequently Asked Questions List

Do-it-yourself repair information, valve theory, and home-made test equipment, by British collector Paul Stenning.