Yahoo Groups archive

Doepfer

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

Message

Re: AW: [Doepfer_a100] The untunable A-110s

2015-08-21 by Dr. Roland Schregle

On Fri, 21 Aug 2015 10:46:05 +0200, yahoo@doepfer.de [Doepfer_a100]  
<Doepfer_a100@yahoogroups.com> wrote:

> I'm sorry about your problems with the A-110. Please contact our A-110  
> specialist directly: Matthias Marass (keyboards@doepfer.de).
> He has tested more than 10000 A-110 over the last 20 years and is  
> responsible for the service of the A-110. Maybe the internal
> transistor heaters are defective and the CA3046 have to be replaced. But  
> that's only a guess.

Thanks for referring to Matthias, Dieter.

FYI, I tried swapping the CA3046's, but that made no difference. I also  
checked the tempco voltage, and it was at around 0.63V as per the  
calibration requirements.

I hope Matthias can drop me a hint. Many thanks,

--Roland


-- 
"END OF LINE" [MCP, 1982]

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.