Archive of the former Yahoo!Groups mailing list: MOTM

MOTM-310 uVCO is up and running. I am looking at 1 tweak: to compress the COARSE range some from
the MOTM-300.

The MOTM-300 has an extremely wide range for the COARSE knob: at '0' it's about 1 cycle in 8
seconds, and at '10' it's about 150Khz.

I am thinking about 'compressing' it so that the overall range is more useful. This is 1 resistor
value change.

One range I'm looking at is from about 2Hz to 18Khz. The VCO can go lower/higher, this is JUST
the 'no input', free-running range.

The range is like a Slinky: if it goes LOWER, it also goes HIGHER.

So, if I have a 'LFO' type low side, the upper end gets non-useful sooner. So, is 2Hz - 18Khz OK?
Other ranges?

One interesting note is the '5' position is always around 220Hz (set by another resistor). So,
the COARSE resistor can be though of how 'fast' the lower and upper frequencies are reached. Is
it better to have:

a) 10Hz to 10Khz
b) 2Hz to 18Khz
c) 0.5Hz to 30Khz
???

Paul S.
yawn, burp, Zzzzzzz