Thursday 6 June 2019

Portabellabz VCS3 Card for 208

These are some pics taken during my build of the Portabellabz synthi/vcs3 card/
Its designed to be an expander for the Buchla 208 / Music Easel.
These are un-official notes and I'm not affiliated with Portabellabz.

The Official website is here:
+ http://www.portabellabz.be/vcs3.html 
+ Official Manual
+ Official Build notes
+ Muffs build thread

Resistors, IC sockets, Voltage regulators etc

Trim pots and caps.
The order of placement of my components isn't ideal. It was dictated by the components I had at hand and more were added as components arrived.

The rear so far.

More pots arrived :-)


This 2n5172 trannie is for the noise. Cut off the centre leg.
You need a to order a few of these so you can select the best one for the noise. (see build notes).

Some close ups .. esp of that 2n2916 and the 1K TC resistor



initial panel wiring

The noise transistor

There is one standoff missing .... between the freq and sync inputs.


No comments:

Post a Comment