[sdiy] A20G545 chip, what is it?

Michael E Caloroso mec.forumreader at gmail.com
Sun Jun 19 07:31:48 CEST 2022


Is there a manufacturer's logo on the ICs?  Post a pic?

I have lots of databooks from the 80s.  If the logo can be identified that
narrows it down.

MC

On Sat, Jun 18, 2022 at 11:04 PM John Speth via Synth-diy <
synth-diy at synth-diy.org> wrote:

> Today I was dumping old circuit boards that I built many years ago. I was
> stripping valuable parts from one and I found two 18 pin DIPs that are
> marked "A20G545" on one line and "MCE 8211" on the line below it. 8211 is
> the date code (1982). The other markings are a mystery. Searching for this
> chip online was a dead end for me. Does anybody know what it could be? It
> was from a board that contained an SSM 2012 VCA and an SSM 2044 VCF. I've
> lost the schematics. It was my design.
>
> Thanks - JJS
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