05-09-2009, 03:57 PM
Well they all can't be bad (can they?, or can mica disease spread lilke swine flu to the unwashed comrades in an ancient radio? ) Unsolder and measure them if you have a good cap meter. The values are so low, you have to do this by subtraction, (i.e. connected, don't move the test leads disconnect.) The bad ones will show infinite ohms, but will fail when the slightest voltage is applied. I use an ancient eico bridge/capacitor tester to do this. A bad one will fail at about 6 volts, a good one can easily do 100 volts. Out of circuit only!
Anyway, back to the question. These are typically 5 to 15 mmf. If you replace one and can't align the stage to the proper IF, then you have too much or too little.
But I'll bet someone knows what value this set uses, and will reply, and save you some time. And if you opened all the cans already, I'd replace all of 'em. I can't for the life of me tell the difference in replacing the silver micas with simple cheap creamic capacitors, which cost only pennies nowaday. But that's just my 2 cents worth.
Good luck.
Anyway, back to the question. These are typically 5 to 15 mmf. If you replace one and can't align the stage to the proper IF, then you have too much or too little.
But I'll bet someone knows what value this set uses, and will reply, and save you some time. And if you opened all the cans already, I'd replace all of 'em. I can't for the life of me tell the difference in replacing the silver micas with simple cheap creamic capacitors, which cost only pennies nowaday. But that's just my 2 cents worth.
Good luck.
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