Division 6 CEM3340 VCO - DIY Build
Summer is in full swing and we were craving some new oscillators to add to our modular rack. This need was fulfilled by Division 6 labs and Synthrotek with the new Division 6 CEM3340 VCO.
This voltage control oscillator is based off the famous Curtis 3340 IC which has been around for quite some time and have been utilized in many legacy synths. Our build of the Division 6 CEM3340 was a quick and easy build and is recommended for anyone just getting into modular DIY.
What is the Curtis 3340 IC?
Many synths today utilize chips that mimic the famous Curtis 3340. While this chip is no longer manufactured in mass volume, there is a few places that still sell the chip. What makes this chip so special is it is a self contained, precision voltage controlled oscillator.
Note: The chip used in this kit is not an original Curtis 3340 IC, but it’s damn close!
It features both exponential and linear control scales and up to four buffered output waveforms. ( triangle, sawtooth, square and pulse). They do not require a temperature compensation resistor because they provide their own compensation. Multiple control voltages can be mixed within itself.