A-138c Polarizing Mixer

Four-channel polarizing mixer

Doepfer · 8 HP · 3U

Specs

Function: Mixer
Secondary function: Attenuator / offset
Width: 8 HP
Height: 3U
Depth: 35 mm
Draw +12 V: 20 mA
Draw −12 V: 20 mA
Draw +5 V: 0 mA
Price new: not recorded
Price used: not recorded
Inputs / outputs: 4 in · 1 out
Controls: 5

Availability

Manufacture: not recorded
In shops: not read yet
Second-hand: not read yet

■ inputs ■ outputs

Panel · 40.6 × 128.5 mm

Description

Doepfer's polarizing mixer in 8 HP: four inputs each added or subtracted, the sum attenuated or inverted.

Key features

Four inputs, each knob zero at its middle: left subtracts the input, right adds it
The Out knob attenuates or inverts the sum the same way
With nothing in Input 1, In1 is an offset of about -5 to +5 V (a jumper inside)
Made for control voltages: envelopes, LFOs, offsets

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