[sdiy] problem with a midi>cv converter... or is it a feature?

Henry Birdseye henry.birdseye at gmail.com
Thu Oct 16 23:46:58 CEST 2014


Well, the unit *is* from 1986, so I'm not surprised something went bad.

I love a good sweepstakes. Thanks for playing, everybody.

On 10/16/2014 5:14 PM, Colin f wrote:
>   
>> And Colin; yeah, a bad demux might do it. It'd be the 4052,
>> since that's the one that does the the CVs. That was why I
>> suggested the test with the dynamics CVs. They're on the
>> other chip, a 4051, and it seems unlikely they'd both go down
>> together. If they *were* both down, that suggests something
>> further back.
> Ah, yeah - the 4052. Should have gone to spec savers :)
> I'm always surprised when I see a 405x series analogue switch of that
> vintage still working.
>
> CHeers,
> Colin f
>
>
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