Yahoo Groups archive

MOTM

Index last updated: 2026-04-28 23:35 UTC

Message

Another good weekend for MOTM

2006-01-16 by Scott Juskiw

It all started last Friday, Friday the 13th under a full moon, when I 
first powered up my Moog Etherwave Pro. After a couple of failed 
attempts to play "Turkey in the Straw", I realized that P. Kurstin 
has nothing to fear. However, hooking this thing up to Darmok was 
much more gratifying. This thing is a blast!

The Etherwave Pro is a bit pricey, but it's gorgeous and is a great 
controller for synths because it has CV outputs for the volume and 
pitch antennas. There's a picture of it in action at the bottom of 
this page (click on the picture to see a bigger version):

http://www.tellun.com/motm/darmok/20060108/20060108.html

I've had success hooking these CV outputs up to oscillators, filters, 
LFOs, VCAs, you name it. Things I would recommend are: use Matthew 
Davidson's pitch quantizing ROM with a MiniWave when using a theremin 
for pitch control, use the volume output from the Etherwave to 
control a VCA so your synth goes silent when you leave the room (the 
volume output rises as you step away from the theremin, so it's at 
maximum volume when you walk away from it). Luckily, it's easy enough 
to hook up a MOTM-700 to control a VCA and EG to make the synth go 
silent when you're a few feet away.

I also tackled the request for a MUUB gate delay circuit. There 
wasn't room on the panel to have two of these in 1U with voltage 
control. I realized that if you really need a voltage controlled gate 
delay, you can do it with the MUUB lag processor and the MUUB 
comparator. Just use a long linear delay on the lag and use the 
voltage control inputs on the comparator to set the switching level 
(and thus the delay time). But I think there's still a need for a 
gate processor with hold and delay times, and a manual gate 
pushbutton, so that's what I built. Preliminary info can be found 
here:

http://www.tellun.com/motm/diy/tln866/TLN-866.html

This module, and the MUUB lag processor, needs 1M log pots, which 
aren't easy to find. Bourns part number is 91A1AB28D25 and both 
Mouser and Allied require 500 minimum order. Gulp. This might be 
another good part for Stooge Enterprises to stock.

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.