I think you also need to find an all inclusive solution to the 5 volt
supply problem provided by you.

Most people don't have the time/don't feel like they know how to mess
around with DIY stuff/ 3rd party power supplies. If you don't is going
to tremendously knock down your customer base to a small percentage of
owners that are used to doing DIY.

--- In Doepfer_a100@yahoogroups.com , "metasonix2000" <synth@...> wrote:
>
>
> > And I think the yellow panels would be great.
> > with the tubes protruding from the panel are they running hot,
enough to
> > either singe a hand or a patch cable
>
> Thanks all. Nice to see someone cares enough to answer.
>
> No, the tubes won't get hot enough to melt patchcords or burn your
> fingers.
> At most, they will get a little too hot to hold with your fingers for
> extended periods. So don't hold them.
>
> Convective cooling is critical here, thus the exposure. If they were
> enclosed in a cabinet they would run a lot hotter.
>
> That VCO circuit is a really cute thing. I found it in a 1964
> textbook. It was called a "tuneable amplifier", even though it doesn't
> even provide any gain, in fact it attenuates the input signal a LOT.
> Control it with a 5C3 Vactrol, and it makes a strangely linear
> VCO.....I didn't expect that!
>