Serious question, why do so many people skip the capacitor check on old tube radios?

I was fixing a 1950s Zenith table radio from a garage sale in Omaha, and the sound was just a low hum. Everyone online said to replace the tubes first, so I spent $80 on a new set. Still hummed. My buddy who fixes old amps told me to test the filter capacitors with a meter, and sure enough, two were totally dead. Replaced those for $12 and it works perfect now. How many other simple fixes are people missing because they jump to the expensive part first?

2 comments

2 Comments

grant.parker1d ago

You hit the nail on the head with "jump to the expensive part first." It's a classic rookie move, and not just in radios. People see a problem and go for the flashy, known fix without doing the basic checks. That capacitor check is step one for a reason. It saves so much time and money. I learned that the hard way, too.

umamurphy1d ago

Yep, swapped a fuse once and felt so dumb.