Archive of the former Yahoo!Groups mailing list: MOTM

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [motm] The great 300 VCO

From: Dave Hylander <david@...>
Date: 2001-01-01

Works great Larry! Thanks. Now for the question.. I pulled out my 300
Schematic to update it and rang out the via the mod takes place on and
found that the via connects pin 1 (square pad) of VR1 (Fine Pot) to
-15V. Correct? The schematic is showing pin 1 connecting to +15V. Am I
reading this wrong?

-dave-

At 02:17 AM 1/1/01 -0600, you wrote:
>On my stock MOTM 300s, the range of the fine tune control is about 11
>semitones. I wanted something in the 2 to 3 semitone range on that control.
>The modification is simple and virtually non-destructive. It requires adding
>one 270K resistor to the circuit board and cutting one trace. Since the
>trace resides between two via holes, the modification is easily reversible
>by removing the resistor and inserting a wire jumper.