VCO Control Voltages...

[Tadej Bozicko]

Hi!

Initial work on my home built modular has just started. I've tryed the VCO (well... only exp converter) on protoboard and it work (finally as I almost threw all away). Anyway, my question is about the control voltage standards/recommendations. I've decided, my VCO would track from 0 to 10 V over a ful range (10 octaves). As I saw in ASM VCO design and notes, it states that ASM's control voltage ranges fro -15V to 15V. I am wondering if ASM is scaled strictly musical or rather freelance... My explanation is that only 0 to 10V on ASM are really musical (octaves:) and other voltages just extend frequency range. Correct me as I am probably wrong. I'd appreciate comments/hints from other users. My current idea is 0 to 10V CV range and -10V to 10V VCO output. Comments?
The other question is a pinout of the FET transistor, type 2N4393 (is it good enough for shorting the cap. in VCO). It is in metallic package like BC107 or BC109. Here is the drawing of the transistor package... please draw in pinout if anyone has the info. And remember, its FET 2N4393.


Thanks!

Tadej Bozicko
E-Mail   : tadej.bozicko at uni-mb.si
WWW  : http://www.uni-mb.si/~uelelt68b

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