Radio reference library
Find a schematic or manual
Enter the maker and exact model or chassis number. Heritage Audio will prepare targeted searches across the major vintage-radio archives.
Model identification, tube lineups, photos and member-contributed service information.
Free Riders and other American radio service data, especially useful for pre-1960 sets.
Scanned service manuals, Sams folders, books and manufacturer literature.
Large searchable collection of radio, electronics and service publications.
Enter a manufacturer or model number to activate the archive searches.
Cabinet label
Look on the back panel or bottom for a paper label.
Chassis stamp
The chassis number may be more useful than the cabinet model.
Country & voltage
Canadian, US and European versions can use different circuits.
Revision clues
Note suffixes, serial numbers and production changes.
Verify before you order parts
Manufacturers sometimes changed component values during production. Compare the schematic with the actual chassis, and preserve original lead dress, polarity and voltage ratings. A schematic is a map—not a substitute for inspection.