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Coupling Cap Spec Question

PostPosted: Mon Jul 22, 2013 10:51 pm
by highflyin9
I was wondering if 350V rated caps would work in the C7/C8 position. I wanted to try dropping in some vintage Russian Silver Mica caps. TIA!

Re: Coupling Cap Spec Question

PostPosted: Tue Jul 23, 2013 4:36 am
by Geek
highflyin9 wrote:...vintage ... Silver Mica caps.


You might want to measure them - I've never seen a vintage SM within 20% of value :(

Re: Coupling Cap Spec Question

PostPosted: Tue Jul 23, 2013 6:38 am
by Shannon Parks
highflyin9 wrote:I was wondering if 350V rated caps would work in the C7/C8 position.


I think that would be fine.

Shannon

Re: Coupling Cap Spec Question

PostPosted: Tue Jul 23, 2013 10:39 am
by highflyin9
I was checking out these odd looking caps, seemed like they might be fun to try:
Image

They are super narrow tolerance at +/- 0.5%, made in the late 70s. Kind of expensive though to have them shipped over so it might not be worth it if they've shifted in value.

Re: Coupling Cap Spec Question

PostPosted: Tue Jul 23, 2013 3:34 pm
by Geek
Sealed? Should be OK for aging. I was thinking of "postage stamp" types or other bakelite cased SM's.

Re: Coupling Cap Spec Question

PostPosted: Tue Jul 23, 2013 5:30 pm
by highflyin9
Yup, it's an airtight container. I found some with a 500V rating, going to give them a shot for the cool factor I think :)