klm 366 - "lenses"

[Dr. Jörg Schmitz]

Hi all,

I found a 13600 on my dead korg polysix klm366B voice board
(Or was it 367 ?). And it works for the serge SVF.
(To be correct : not the voice board was dead, but the 
microcontroller board. You all can imagine why.)

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 !)

J.S.

________________________________________
Dr. J. Schmitz
http://www.patho.bonn.com
http://members.xoom.com/jmschmitz
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