https://www.youtube.com/c/timhunkin1/featured

Tim Hunkin was the co-host of Secret Life of Machines, a BBC program from the 90’s that explained the origins, function, and operation of many appliances and technologies that we take for granted. The entire re-mastered original series is available on his channel. Tim is still creating new series of videos under the name Secret Life of Components which looks closer at the parts and systems that make up those machines. He also builds wildly creative arcade and automation machines and maintains a level of joy in his work that is inspiring and exciting.

https://www.youtube.com/c/UncleDoug/featured

Uncle Doug is an El Paso-based guitar amp technician who does a great job of narrating his repairs and explorations. He also has some extremely helpful video series about the properties and characteristics of basic components.

https://elektrotanya.com/keres

A valuable resources for locating and downloading PDF verisons of owner’s manuals, service manuals, and schematics from all varieties of units throughout time.

https://www.hifiengine.com/

This website also includes access to manuals and schematics, but is also just generally more geared towards stereo equipment and has a more informative layout rather than Elektrotanya’s pure utility presentation.

https://www.thevoiceofmusic.com/

Gary from Michigan is an essential resource for repair shops all across the country. He has built a huge database of styli, carts, idlers, platter mats, etc. He also provides some useful information surrounding the parts he provides.