10-23-2010, 12:12 PM
About the caps, mylars ought to do fine. Just keep the lead dress the same. If you can't get .006, .005 or .0056 should be OK. 400 or 600 volt types are both OK. I usually just keep 600 volt types around to simplify matters.
Onw word of caution about the "grille cloth." Upholstery material may not be be acoustically transparent enough, thus might muffle the sound which sould either cause the bass notes to become damped, and/or absorb the higher pitches. You can check this out by putting some on a working radio and see if this is happening. Get a kid to do the test, if your hearing is as bad as mine. If the material fails the test, you could always make a pillow.
Onw word of caution about the "grille cloth." Upholstery material may not be be acoustically transparent enough, thus might muffle the sound which sould either cause the bass notes to become damped, and/or absorb the higher pitches. You can check this out by putting some on a working radio and see if this is happening. Get a kid to do the test, if your hearing is as bad as mine. If the material fails the test, you could always make a pillow.
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