AW: AW: [Re: thermal tips re expo converters:]

[Haible Juergen]

	> Is this the way Moog did it with osc. and filter drivers?

I think so.

	> For other controllers then keyboards, like continuous sources the
	> exponential scaling is necessary, because higher notes would have
	> different resolution the lower.

Depends on what you want. The CS80 ribbon is linear, and highly useful.
People like it because it goes down below audio range.
What you obviously have in mind are continuous sources with equally spaced
semitones (to stay with the pich ribbon example). This has it's benefits for
sure,
but my point is that you don't normally need precise temperature
compensation
on such sources. If the controller is "fretless" (in a generalized sense),
you
will find the right pitch by ear and little position adjustments of your
fingers anyway.
You can do all this with the MS-20 oscillator scheme without the need of
tempco resistors.

JH.