Archive of the former Yahoo!Groups mailing list: MOTM
Subject: MOTM-490 extra input query
From: Suit & Tie Guy <erwill@...>
Date: 2009-10-14
I've finally built my 490 PCB, and put it in one of my Moog-format
Post-Lawsuit Lowpass Filter panels with the word "Post" sharpied out.
oh the irony.
the build went very smooth, i had most values here and the
substitutions i made didn't keep it from working or trimming up
right. the sound lives up to the reputation, and it would probably
behoove me to build another one or three.
my problem with the module is that it only has one 1v/oct input and i
have room for two here on my module. the PCB has the 1V/oct input
going right into a trimpot, and then into a resistor and then the
node with the FM input. i juggled the values on these because of what
i had here and put a 100K multiturn in the 20K trim position and a
50K resistor in the 127K resistor position.
my question is: can i jumper over that post-trim resistor, and have
two jacks with 50K resistors going into the pad feeding the trimpot?
obviously i could just do it and it would work, but i thought i'd run
it past the list first. there might be some impedance-related issue
i'm not taking into account or something.
thanks,
---
Suit & Tie Guy
suitandtieguy.com
stgsoundlabs.com