In Reply to: RE:I use them in rebuilds of vintage amps posted by DAK on April 23, 2017 at 10:16:31:
Photoflash caps have low inducatance and fast discharge, but are NOT good for filtering large amounts of ripple or current. Use a good computer grade for initial filtering and photoflash for decoupling (with a film bypass), where they work very well. I measured some 500mfd/500vdc photoflash caps that had less than 40 miliohms ESR--cn't get that in an electrolytic of that size. Film caps can have even lower ESR, but can't store nearly as much energy.
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Follow Ups
- Agree with Lee of Omaha - garymuffley 17:15:15 04/23/17 (0)