Doepfer A-149-1 Handleiding

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doepfer System A - 100RCV A-149 /1

1

1. Introduction

Module A-149-1 is a Random Control Voltage

Source based on the idea of Don Buchla's "Source of

Uncertainty 265/266" modules. It has available4 ana-

log random voltages,that are generated in different

ways.

The Quantized Random Voltagessection has avai-

lable the outputs N+1 and 2NStates. N is an integer

number in the range 1...6 that can be adjusted manu-

ally (Man N) and by an external control voltage CVN.

The voltage steps are 1/12 V for the 2Noutput (i.e.

semitone intervals) and 1.0 V for the N+1 output (i.e.

octave intervals).

The Stored Random Voltages section has available

an output with even voltage distributionwith 256

possible output states and another output with ad-

justable voltage distribution probability.The distri-

bution of this output can be adjusted manually (Man D)

and by an external control voltage CVD. The voltage

range is 0...+5 V for both stored random outputs.

The rising edge of the corresponding Clock input

signal triggers a new random voltage value at the

outputs.

Each output is equipped with a LED that displays the

current output voltage.

CV N InMan N

A-149

Clk In

RCV

n+1

CV N

Quantized RV

CV D InMan D

Clk In

CV D

Stored RV

2n

Remark: The A-149-1 can be expanded by the A-149-2

module (8 digital random outputs with LED displays)

Product specificaties