How do you LP wo/caps?

tomg efm3 at mediaone.net
Fri Jul 28 06:51:58 CEST 2000


> > I am not sure what I have done! But on my bench right now
> > is a 2 stage (pole?) LP filter that sounds much better than
> > most of the 2 or 4P LP group that has no caps!

> Yes, they are called misstakes. These are what form new ideas for
solutions.
> May I be the first to congratulate you for your discovery!

Yep! LOL.;-)  you are right on about that one! It was a total mistake. I
never
intended for it to work this way.

> This is just how the Aphex sweetener (or whatever it is called, broken
memory
> cell needs replacement?) came about

I remember that story..

> There are examples of filters where you take the builtin compensation cap
of
> an OTA and use that. Actually, this is what you can consider the Moog
ladder
> to be.

I thought about that but there are none in the 13600.

> Capacitance is present in all curcuits, heck, it's there even when we try
to
> have nothing and not doing electric curcuits.... even vacuum has it ;)
> Oh, yes... there is a find method for doing filters without caps, they are
> called inductors, have you met those? ;)

Yeah, but how come it sounds like this!

http://www.xavax.com/efm/waves/no-caps.mp3


> So, hand over the topology for the eager one! ;)
> Cheers,
> Magnus

I would love to Magnus!! I can't think of anything I would enjoy more..
There is that problem of it becoming a hot new product for somebody.
OTOH Maybe....We'll see..;-)

Tom







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