Quote:
Originally Posted by reichsrundfu
Quite agree. I simply do not believe in powering up any radio or television receiver until ALL of the filter and paper capacitors--"all of them" being the operative-- have been replaced.
Did I mention all of them?? Powering up a receiver with original caps is in my very humble opinion, silky, lazy and risky. Heavy on the risky. Recapping your set fully will reduce risk tremendously. Then you can power it up and go looking for whatever else may be Ailing it, such as mica caps, resistor issues, etc.
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It is not all that risky if you do the power up right. A slow start with a variac, the back off so any smoke or signs of trouble can be seen, and periodically feeling the cans and transformer to make sure they are not getting hot is about all that needs to be done to give a safe test power up. (and of course having the sense to pull the plug if signs of trouble manifest)
It is always good to have a baseline before you start changing caps so that if you screw it up you know to check your own work, and not simply blame the set and start chasing shadows.