> ----- Original Message -----
> From: <mark@...>
> I could put a diode right on the CV input, leaving me
> with approximately 4.4V.
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I'm not following you at all here.
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> I think have the application notes for all of the motm
> IC's would make the experience more educational.
> Do you know who makes it?? I shall attempt a
> web search.
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Well, I actually think the documentation with MOTM is
more educational than any of the rest out there.
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> Pending research, how is this idea?? Add another
> transistor with 15V at the collector, have the input
> from the jack go through a diode (to protect against
> negative voltages), through a current limiting resistor
> at the base, then connect the emmiter to the switch
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Yadda, yadda, yadda....
I was suggesting something without addisional of parts. Actually
the easiest thing, would be to leave the 820 just as is. Go get
one of those very small and cheap 5 volt relays that looks
like a IC. Run your CC voltage to that, and use a normally
closed contact out of the thing to switch your 820. $2 max, no
power supply wiring required and no 820 mod. Mount it to the
back of the 820 bypass jack.
Larry H