klm 366 - "lenses"

[>>>marjan<<<]

> but another question : I also found (on the top left corner
> of the voice board) 3 resistors with the caption "TH1", "TH2",
> "TH3". They are black and look like lenses. I supposed, that
> these are tempcos, and tried them out. They all have 100 Ohm,
> and, surprisingly, with cooling down, the resistance INCREASED.
> The tempcos I know behave reverse, i.e. increasing resistance
> by warming up.
> 
> What are these "lenses" ?
> 
> (I tried to use them as tempcos for the exp stage of a VCO,
> between the output of the CV-suming-OPAmp and the base of the
> first exp transistor. It worked nice !)



Hi Jorg,


those are cheap NTCs used for measurement of temp, here they compensate
CVs ADR parameters of SSM env generator. They're used in upper leg
of voltage divider. I plan to use one in my little 1VCO synth project
but I haven't still managed to get some extra time to solder it :(
(it was like exp how good it'd be for vco but your result is promising
:)


marjan