A set of 2 PCBs.

The Dodecamodule Model 212 allows even the smallest Electric Music Box system to incorporate the sophistication and diversity of function formerly available only in large studio systems.

Model 212 integrates the following 12 functions into one compact module:

Preamplifier

Noise source

Envelope detector

Stored random voltage

Random voltage source

Balanced modulator

Voltage-controlled filter

Mixer

Headset driver

Triple envelope generator

Triple lopass gate

Output amplifier