Let's Go Shopping
ES20 - 1973 VCO
Let's Go Shopping

The ES20 starts with a classic sawtooth oscillator core and adds a voltage controlled wave shaper to the output.

Unlike most conventional VCOs' the ES20 does not have a 1V/Octave input. However the scalable input [CV A] of the ES20 can be used in conjunction with the [FREQUENCY] control to provide tonal tracking.

The [CV B] knob can be used as a FINE TUNE control for the oscillator.

The wave shaper allows the [SHAPED] output to swing from a sine wave to a modified sawtooth output and can be both manually and voltage controlled.

See the Patch Of The Week below from Doug for a comparison with the original Serge 1973 VCO.


Module Width
12HP
Module Depth
60mm
+12V @
15mA
-12V @
5mA

 

CV A & CV B
0V to +5V
WAVE SHAPER
0V to +5V
SYNC
1V <> 2V
SHAPED - AC
-2V5 to +2V5
SHAPED - DC
0V to +5V
SAW - AC
-2V5 to +2V5
SAW - DC
0V to +5V
Frequency Range
16Hz to >16kHz

 

User Guide
Bill of Materials - 3.5mm - 4mm
Email:  elby-designs@bigpond.com
© Copyright 2000. All rights reserved.     Revised: July 21, 2017