Problems with paia VCA

[matt wilson]

James Damewood wrote:

> Also I am working on the PAIA VCA too.  The hum you hear on the L channel
> is from the Midi2CV8 power's supply from the positive rail.  It is
> delivering about
> 12.04 VDC and 1.4 vac rms.  I believe the power supply should have been a
> fullwave
> rectifier instead of half-wave.  Also the noise generator products too low
> of
> signal source to be effective.
>

interesting: i'm also working on the 9710, but the kit was missing several
resistors, *both* pcb mounted trim pots, one of the matched trannies was
broken/unusable, etc....it would otherwise be finished right now (i didn't
have
the missing parts on my bench, and i refused to go out and buy them for
basic headstrong reasons.....)

i will be using blacets 15V ps; i hope i wont get the problems stated here.
i've been using it with the m2cv8 and several homemade modules with no
problems.

matt


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MATT WILSON is ODYSSEY SOUND
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