Schemi Radio TV - Database of schematics of Italian-made radios as recent as 1950, available in pdf format. Requires free registration. [English, Italian] Vintage Radio Repair and Restoration - Do-it-yourself repair information, valve theory, and home-made test equipment, by British collector Paul Stenning. Crystal Set Design, TRF and Edison radios - Original articles on the design of crystal radio sets with additional articles on TRF and the Edison Company radios as well as antique hearing aids. FM Pilotuner 601 - 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. Rec.antiques.radio+phono FAQ - 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. AA5 History - 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. PhilcoRadio.com - 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. Restoration of German Tube Radios - Walter's Radioflier - 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] Atwater Kent Tech Resources - 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. Gootee Systems - Personal collection of antique radios and electronics, vacuum tube equipment repair advice, resistor decade box plans. Dave's Homemade Radios - Dave's home built tube radios and crystal sets. Schematics and FAQ.