cap question
tomg
vco at mindspring.com
Wed Dec 30 02:24:36 CET 1998
On 28-Dec-98, Reverend bluE wrote:
>okay, I finally found a VCO design that I like (read: I can find the parts
>for it.)
>It is the Maxx2 Master VCO (VCO-4B)
>http://www.mindspring.com/~vco/maxx2/page_007.html
>the only problem that I have is the word "POLY" printed in red on the
>schematics under the 2N4392 trans. It would appear that this word refers to
>the Cap that it is printed by. "POLY .002"
>does this mean I need a Polyester Cap? I find them, but the tolerance is
>poor (+-20%) the other Polys I find are the Metalized Polypropylene Film
>ones, but these are physically big (32mm), and it would be the most expensive
>part of the circuit (just about)...
>beyond that, I can't find a .002uf CAP anywhere. it jumps from 1 to 2.2uf.
>So what is the deal here?
>I guess I have two questions. The one about the word "POLY" and one about
>.002uf CAPs. yeah. I think that's all.
>thanks for your time.
>-ben
Any good .002 even a ceramic will work. A ployester film
type will offer better stability and a +-5% tolerance. Temp
stability of +5% to -2% change @ 85'C / 0% to -5% at
40'C.
sub-mini and cheep!
Mouser # 140-PM2A202K $.12 each.
-tg
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