[sdiy] 910 pF caps (Buchla 292C/266-3)

[Fahl, Romeo]

Hello,

I'm having hard time finding 910 pF caps from the usual vendors that I go
through.  Mouser is out of stock on the one part that they have, Allied has
none, nor does Digikey.  

What I'm wondering is, if I could substitute the 910 pF caps with 1000 pF in
any of the projects I'm working on.

The first one is Bucha's Source of Uncertainty, in the Fluctuating Random
Voltages module:

http://www.musicsynthesizer.com/Buchla/266-3.jpg

I'm not quite sure what C11A and 12A are doing (around IC 3 near module
inputs).  The second couples IC 5 to 6 (C17A and 18A).  Seems like that one
is less critical.  

The other project is an updated version of Buchla's LoPass Gate (292).  

http://www.simple-answer.com/lopass-gate.jpg

C5 Appears to be doing some audio filtering, so my guess is that it's more
critical  to have an accurate value there.  I suspect that if I change the
4.7Meg resistor, I can compensate for a different value.  

So, can anyone tell me if 1000pF caps are acceptable for any of the above
circuits?

Romeo