The following manuscript collections are part of the Perham Collection of Early Electronics. Where available, titles link to guides at the Online Archive of California.
- Apple Computer, Inc. Technical Drawings
- Harold Atkinson Papers
- Cledo Brunetti Papers
- Lee and Marie de Forest Papers
- Harold F. Elliott Papers
- Perham Collection on Federal Telegraph Company
- Henry Harding Papers (unprocessed)
- Donald B. Harris Spiratron Papers
- Ralph and Sophie Heintz Papers
- Leo Jones Papers (unprocessed)
- Thorn Mayes Sound Recordings
- George B. McCullough QSL Cards
- Jane Morgan Papers
- Douglas M. Perham Clippings on Early Radio History
- Perham Foundation Records
- Perham History Files
- Robinson & Crandall Lantern Slides
- Howard C. and Lyndon F. Seefred Papers
- Royden Thornberg Papers
Related Collections at History San Jose