MOTM Status Report

[Paul Schreiber]

Since the gum surgery is all over, the stiches are out, and I get all next week off, it's MOTM Time!!

1) I got a decent price for the front panels. So, I will offer black anodized, white lettered panels. THey
are either 2U or 3U wide and 5U tall. Also, blank 3U wide ones.

2) I will offer "stringer" brackets for 19" racks. You screw these across 5U apart, and the modules bolt to that.
The only issue is power supply distribution, but an enterprising person can buy a Elpac WM220-1 power
supply, and a blank panel, and a 5 pin DIN, and be all set!

3) About 9 of you are "really thinking hard" for the wood case, so that's what I'm planning for (plus mine!).

4) I have begun to order the parts for #1 and #2. Here is the run-down for the 2 modules:

#1

Low distortion Ring Mod - designed by Thomas Henry & Paul S. Uses 1/2 of a CEM3330, OP275GP ultra-low
noise op amps

AGC's Noise source - designed by Dave Rossum of EMu. Discrete transistor/FET design. Plus a TL074ACN.

Precision S&H - uses National LF398AN for 1mv/sec droop, 1mv offset. Has simple internal clock, or
external clock. Has lag adjustment.

Ultra-low-noise/distortion mic preamp - uses Burr Brown INA103 with an AD820AN DC servo amp. No caps
in the audio path. <.005% THD+noise. XLR input.

Compressor/limiter - can be used with mic pre-amp or stand-alone. Variable knee, compression ratio.

Simple VCA - where the other half of the 3330 went to!!

The cost (not final) should be around $130/$120 with cabinet (cabinet folks ALWAYS get a discount!!)

#2

Stereo synthesizer - mono IN, stereo OUT. Kind of cute. Possible Wide Field stereo expander mode
if I can address patent issues.

"Clickless" analog switch - set up as 2ea 2:1 muxes. Voltage controlled switch points!

DC switch - same as above, but for CVs. Uses precision DG213DJ switch (none of that cheesy 4066 stuff!!)

Cross-Product Module - Bernie Hutchins/Thomas Henry's basic design 1 step farther. This can be used as
a stand-alone sub-octave divider, or with 2 inputs it generates the most bizarre timbres ever. Hard to describe.
Build it and see!! Great for drones/goa stuff. Very weird. Lots of knobs.

Also, around $120/$105.

I expect around Feb. 10th for both of these to be ready to immediate delivery. As always, comments/feedback
welcome.

What will the rest be? Well, assuming I sell THESE first (ahem!), they are:

#3 Dual 3340 (<<<not a typo) VCO
#4 Quad VCA
#5 Dual VC EG w/delay
#6 15-mode Xpander fiter

Happy Holidays!!

Paul Schreiber
Synthesis Technology