[sdiy] NTE888M suitable UA776 replacement?

[Matthias.Herrmann at jeppesen.com]

i used LM4250, too. that's what marc bareille himself stated in response 
on my enquiry:

"You should try UA776 if you find some ... Not they sound better , but you 
will get a better control range and less artefacts at extreme 
frequencies/Q settings. Anyway i am happy you enjoy the sound of this 
unique filter :), that the resonnance control would be better using 
UA776."

and yes, i agree with jeff, it sounds wonderful. i like it very much and 
it has a lot of character.

matthias herrmann

_____________________________




"jeff brown" <guitaricon at comcast.net> 
Sent by: owner-synth-diy at dropmix.xs4all.nl
03/24/2006 02:20 AM

I used the LM4250 instead (actually, the NJM brand, Mouser part number 
513-NJM4250D). Only 34 cents each! But don't forget to change R10 and R11 
to 
1.2meg or more.

This is a woderfully filthy filter, BTW. I've got 2 of them in my modular 
(http://www.guitarfool.com/synthesizer.html).

Hope this helps,
Jeff Brown

----- Original Message ----- 
From: "James R. Coplin" <moog at qwest.net>
To: "'synth-diy'" <synth-diy at dropmix.xs4all.nl>
Sent: Thursday, March 23, 2006 11:42 AM
Subject: [sdiy] NTE888M suitable UA776 replacement?


> I'm wanting to build a couple of the Polivoks filters from:
> http://m.bareille.free.fr/modular1/vcf_polivoks/vcf_polivoks.htm
>
> However, the UA776 is unobtainable.  Is the NTE888M a suitable 
replacement
> or does someone have a stash of UA776's they would be willing to part 
> with?
> Thanks!
>
> James R. Coplin
>
> 
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