$4 Voltage-Controlled Resistor PCB
For use in circuit-bending, or modifying circuits with a variable resistor.
The resistor is only affected by positive voltages.
Uses two pots -- one for initial control, one CV attenuator.
Can use single or dual vactrols, which we also sell.
Has optional range-trimming resistors.
Toy keyboard abused by modular VCO.
