digital delays and cap question..

[Edu Silva]

PMDF V5.2 Mail Server escreveu:
> 
> #1
> I now have four digital delay units (two racks, two pedals, all different
> brands).  they all seem to use similar IC chip numbers.  is it possible to buy
> "upgrade" chips and slap them in there to increase delay times? are there any
> good ways to increase delay times? (add a resister or something?)

Wich chips are they? to increase delay times, the easyest way is to use
two or more units in series.

> #2
> in anderton's super tone control, he calls for a "polystyrene" cap (I think).
> I didn't have one, so I substitued a regular (disc I think) cap of equal value
> in it's place.  would this have any adverse effects? (the tone control is
> *still* not working)

Polystyrene caps are the best type for VCO's due to their stability, but
in this case (tone control), there's not much difference. Anyway, I
suggest you to use a polyester here, not a ceramic. Have you checked the
pots wiring and changed the 4136?

Edu Silva
ES2 Audio
http://audiolist.cjb.net