Yahoo Groups archive

Doepfer

Index last updated: 2026-04-29 00:15 UTC

Message

Re: [Doepfer_a100] Re: Noisy A-131 VCA >> opamps

2004-02-05 by Florian Anwander

Hi

> Dont the 130/131s use the PA382?  Mine do, but i dont know what date they
> were made.
> 
> My 132s certainly use the CA3280.
The PA382 is the Curtis Chip. Dough Curtis renamed the CA3381/3382 to 
PA381/382. don't ask me why.


> Theres a lot of opamps out there.  The ICs on the 130/131s are certainly
> socketed (the 132 is soldered in).  Theres quite possibly a drop in
> replacement for those who are not happy with the performace of the opamps
> used as standard.
Ouch! neither the CEM3382/PA382 nor the CA3080(or equivalent) are 
OpAmps!!! The Curtis Chip is a complete VCA, the CA3080 (or equivalent) 
is an OTA.

Do not mismatch with OpAmps!!!


Florian

-- 
Florian Anwander                  |ConSol
Tel.   +49(89)45841-133           |Consulting&Solutions Software GmbH
Fax    +49(89)45841-111           |Franziskanerstr. 38, D-81669 München
email: florian.anwander@consol.de |http://www.consol.de

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.