Someone from my neighbourhood asked to maintain his table radio. A pretty begin-70's transistor model

 

It works, but has your typical issues: bad contacts, cracking controls.

I went to the local electro shop to get a new can of contact cleaner, opened it up and serviced it.

This model is made from 1970 to 1973. The lineage runs from way before that until the late 70's.

 

Details here, with the transistor names. There's a service manual available too.

I didn't check before filming so I missed a few things on camera: a few TO-92 transistors, the short wave band (my brain switched from mid to ultra-short).