Hi Folks,
Pretty new to electronics just a pretty simpe question...
Does anyone know of any very high end non polar audio caps (around the 22pf - 33pf) range (Polypropolene???)
Plus are Vishay (Polypropolene) orange drop caps non polar???
Thanks.
Mix.....
Yes, the orange drops are non-polar. www.diycable.com stocks some caps that will get up in to your range (polyprops) designed for audio, or you can search for any non-inductively wound poly caps in www.mouser.com. Solen, available from www.partsexpress.com has polyprops available in large sizes, and www.angela.com has poly in oil caps in that sort of size, IIRC. Also search ASC oil for large motor run caps on ebay.
Well, IIRC, they're non-inductive (or at least largely so) so that's good for the audio purpose, but as to how they sound, you've got me, I've only used them for their intended purpose and in power supplies. Input caps are frequently so small, I'd be inclined to go with a known good..... in my own tube pre, I used a 10 nF silver mica, which are excellent for audio, when they fit.
Hello,
At the moment im building Marcello Pellerano's headphone version of the Zen, which calls for a 4.7uF (around about) input cap, so silver mica's are definitely out of the question!
Cheers
Steve
At the moment im building Marcello Pellerano's headphone version of the Zen, which calls for a 4.7uF (around about) input cap, so silver mica's are definitely out of the question!
Cheers
Steve
Well, look at the impedances involved. What sort of load is it going to be feeding? If it's >1M, as many tube inputs are, you can likely use a tiny cap in place of the 4.7uF
It's this one...if you have any thoughts
http://headwize.com/projects/showfile.php?file=pellerano_prj.htm
http://headwize.com/projects/showfile.php?file=pellerano_prj.htm
Hahaha- I was thinking of a little SE tube zen amp. This value seems reasonable, I bet you'd be okay as low as 1uF, but certainly an SM isn't appropo.
Unless there is something wrong with the letters on my monitor, the original poster asked about 22pf - 33pf caps.
So, in answer, silver mica or polystyrene are the best choices.
So, in answer, silver mica or polystyrene are the best choices.
Hahahhaa- I was just telling my wife how people's expectations make them blind idiots sometimes.... I was thinking of uF from the original post, not pF. For that tiny value, silver mica is a GREAT affordable choice.
Are there any POLAR caps in the 22pF - 33pF range? I've never heard of any in all my years. It might be a typo on his part. Especially as an input cap it is avery low value.
Hi, forgive me for hijacking this thread, but recently I read something on these forums about a recommended way of wiring Black Gate non-polar caps (long lead or short lead to ground). Can anyone point me to the correct way?
Cheers!
Cheers!
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