cvgt MM User Manual
4
Copyright © 2014 Synovatron Limited. All rights reserved. (Rev 0 February
2014
)
cvgt MM Description
The
cvgt MM
has four channels; two for CV signal translation and two for
timing signal translation. These are described as follows:-
1.2V/Octave to 1V/Octave CV Translation Channel
This is a precision buffered DC coupled attenuator with an attenuation factor
of 0.8333. It is designed to translate Buchla CV input signals, which have a
1.2V/octave scaling, to an output compatible with synthesizers with a
1V/octave scaling.
1.2v/octave in
A Buchla compatible 1.2V/octave CV
input black banana socket. The nominal input range is
0V to +10V.
1v/octave out
A 1V/octave compatible CV output.
The output range is 0V to +8.333V.
Variant Info:
A 3.5mm jack socket
(Eurorack
compatible) is shown but depending on the variant
purchased could be a banana socket (colour coded
either blue
for Serge and Fenix or red
for BugBrand
outputs).
There is a front panel accessible 10-turn trim pot that can be adjusted with a
small screwdriver. This is factory set to an attenuation of 0.8333 exactly. It is
for very fine tuning only and can only adjust over a small range.
External CV to Buchla CV Translation Channel
This is a precision DC coupled amplifier designed to translate unipolar and
bipolar input signals from external synthesizers into the Buchla 0V to +10V
input range.
These inputs could, for example, be from a bipolar LFO (±5V), a unipolar ADSR
(0-8V), a unipolar quantizer (0-5V) etc. The
scale
and
offset
switches, in
conjunction with the
–v
LED, are used to keep the output to the Buchla within
the 0V to +10V range.
