mm2b one more to go

[tomg]

I have finished the second prototype. One more to go
then it's off the board-house. I don't really want to drill
another 900+ holes but it's a lot easier now that the
holes are etched out of the pads. Changes to the design
were made to improve the CV interface to the analog
section and the VCOs were replaced with a version of
Terry's oscillator that supports FM & PWM looking 
at expanding the basic mm2 to a medium sized modular
for a reasonably price.  

I don't have to do it again but I want to be sure there are 
no errors and all in all this is pretty easy. It's amazing to 
me that I can produce a pcb of this complexity at home
for pennies on the dollar a proto-board house would
charge. The great part is I can design in the morning and
stuff the board that night.

The basic MadMouse2 (6x6) is only slightly larger than 
the mm1 (6.5x4.5) was, has 17 jumpers where the mm1
had 21 and has 21 ICs where the mm1 had 8. The kick
is the mm2 board will cost only pennies more. The raw
pcb and pic will be priced at $45. The same price as the 
BassAce!! (that's $30 for the board and $15 for the pic)
and it's at least twice the synth the mm1 was. There will 
be a "Setup and Assembly Manual" and "Users Guide".

Every effort has been made to build the mm2 without
using expensive parts. The basic synth can be constructed
for somewhere in the $125 range without having to resort
to searching out surplus or bargains.

I will offer a MadMouse2 "Modular Expansion Board"
containing midi - velocity & aftertouch, a 3rd vco, vc-lfo
wave-shaper, rm, sub, patch, mix...ect..for I hope about
the same price ($30) after  the next "Cheap Ass Module" 
release. Panel, kit, and mm2-modular expansion board 
availability and prices soon.

http://www.xavax.com/efm/pcb/mm-2b-sm.jpg

Tom