3080-VCO

Compact 6HP VCO for Eurorack Modular synthesizers

This is a compact Triangle Core VCO. You can install your classic CA3080 OTA chips or use a modern LM13700 instead. The PCB has the option to use either chip.

This VCO has been shrunk to the minimum size possible so you can maximize the remaining space in your rack. Only 6HP wide but packing in a wealth of functionality:

Triangle, pulse and sine wave forms
1/V octave input + variable Linear FM CV and variable Exponential FM CV
Adjustable pulse width and variable PWM CV input
This is a low component count project so you can have high quality VCOs in your rack with minimum expense.

Full kit available or PCB and panel only.

Comprehensive manuals, parts lists and component shopping carts are provided in the documentation link for building, testing and using the module.

Thanks to musician Randy Piscione, organizer of the Toronto Sound Festival for his video of this VCO showing its range and functionality.

The power specs for +12 are without the flashing LED installed, with the LED installed it is 35mA. You can increase the value of the LED resistor to get low power and an LED!

https://www.tindie.com/stores/pmfoundations/