PORTABELLABZ

CV/gate adapters


A plug and play adapter card is available for the 208


Each small board (max 25x32mm) can be soldered directly to a Cliff minijack socket and installed to a boat or panel or mounted with a screw (3.2mm mounting hole).

The boards are shipped untracked for free and come unpopulated without parts. Please contact me to order pre-built ones.


Pulse generator

Turns standard gate signals (+5V to +15V) into the typical pulse (+10V pulse followed by a +5V gate) required for proper sustained/transient envelope behaviour.
It is based on the pulse generator circuit used by Dave Brown for the 218r rev2 pulse modification.

BOM and build notes

Pulse generator


CV 1 to 1.2V/oct

Scales 1V/oct CV to 1.2V/oct and features a switchable offset to turn bipolar -5V/+5V CV into positive 0V/+12V.

BOM and build notes

CV 1 to 1.2V/oct


CV 1.2 to 1V/oct

Scales 1.2V/oct CV to 1V/oct.

BOM and build notes

CV 1.2V/oct scaler


Bundles

Please contact me to order other bundles.

Buchla pulse generator + CV 1.2

Buchla pulse generator + CV 1.2 + CV1