AW: Expo conv. heater (tomg et al.)

[Haible Juergen]

	>I don't understand how this is possible, given the chips are ok and
laws
	>of physics are valid in your living room.
	>
	>How can it take so incredible long to have on-chip compensation ?
	>
	>This would mean a ridicoulous large temp gradient external, to
create
	>such an internal mismatch. I can't believe.
	>
	>I think these chips are defect.

Martin,

I think it just means that the compensation does not work to 100%
(Nothing works to 100%, after all !). Temperature changes slowly
inside the enclosure when you power the synth up, so there you have
the slow change. Most of it is compensated by the chip, and the remaining
error is what we hear. As temperature rises over time, it approaches the
temperature at which you have made your last tuning adjustment.
Makes sense for me, even if there would be nothing such as temperature
gradients across the chip.

JH.