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A-133, System a - 100, In- / outputs – Doepfer A-133 Dual Polarizer User Manual

Page 4: User examples, Doepfer

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A-133

Dual VC Polarizer

System A - 100

doepfer

4

ons would cause clipping for all standard
A-100 signals (like LFOs, ADSRs or VCOs).

If the amplification is negative the signal is inverted
(see table above).

The effects of the manual control 3 and the external
control voltage ! with attenuator 2 are added up.

4. In- / Outputs

!

CV

This jack socket is the control voltage input to control
the amplification by an external control signal.

"

In

The signal to be amplified/inverted (control voltage or
audio) is fed into this signal input socket ".

§

Out

Socket § is the signal output.

5. User examples

One application is the generation of new waveforms.
For this two VCO outputs are connected to the signal
and the control input of the A-133 (see fig.1).

Fig. 1: Generating new waveforms

Same applies for modulations (see fig. 2). Instead of
LFOs even ADSRs or other CV sources can be used.

Fig. 2: Control voltage modulation, arrows indicate

polarity changes

Additional examples:
• voltage controlled feedback of filters (e.g. A-108),

phaser (A-101-3) or spring reverb (A-199)

• polarity change of envelope signals (frequency CV

is used to control both filter frequency and polarizer
amplification simultaneously)

0

0

0

VCO

A-133

CV In

In

Out

LFO 1

A-133

CV In

In

Out

LFO 2