10-26-2009, 02:46 PM
mfd = mF = uF
mmfd = pfd = pF
Use paper capacitors rated at either 600 or 630 VDC, this will cover just about every antique radio need.
Usually, electrolytic capacitors should be rated at 450 WVDC. Occasionally, you may need a 500 WVDC unit but this will be the exception rather than the rule. Also, some Philco models used a 10 uF low voltage electrolytic in the B- supply of the set; these should have their positive ends connected to ground and should be rated at 50 WVDC.
If in doubt, please feel free to ask
Edit: I seriously doubt you will find any help at Radio Shack. As someone over on the Antique Radio Forum has said previously, "Radio Shack. You've got questions, we've got blank stares."
mmfd = pfd = pF
Use paper capacitors rated at either 600 or 630 VDC, this will cover just about every antique radio need.
Usually, electrolytic capacitors should be rated at 450 WVDC. Occasionally, you may need a 500 WVDC unit but this will be the exception rather than the rule. Also, some Philco models used a 10 uF low voltage electrolytic in the B- supply of the set; these should have their positive ends connected to ground and should be rated at 50 WVDC.
If in doubt, please feel free to ask
Edit: I seriously doubt you will find any help at Radio Shack. As someone over on the Antique Radio Forum has said previously, "Radio Shack. You've got questions, we've got blank stares."
--
Ron Ramirez
Ferdinand IN
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