My first job when I left school was in the service department of a secondhand TV shop in West Croydon, we were fitting 3 channel tuners to ex rental sets that only a single channel. Then selling them on for £10, that was 1960. It is rare now to come across a valve radio or tv, those old beasts can be repaired, though a lot of modern electronic eqipment is no so easy to fix.
However all manner of other stuff can still be repaired, I offer a repair service for all leather items including clothing, its worth remembering you can’t always get an invisible repair on leather. And because I have been involved in many different fields in my life I can usually advise you about repairing any other broken or malfunctioning item.
Dont hesitate to use the contact page to ask.