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Doepfer A-150 Dual VC Switch User Manual

System a - 100, A-150, Introduction

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doepfer

System A - 100

Dual VCS

A-150

1

1. Introduction

Module A-150 (Dual VCS) contains two separate
voltage-controlled switches.

Each switch has a control voltage input, a common
Out / Input
, and two In / Outputs. The switches are
bi-directional: they can work in both directions, so
can connect one input to either of two outputs, or
either of two inputs to one output. Voltages in the
range -8V...+8V at the O/I resp. I/O sockets can be
processed by the module.

Two LEDs show which in / output is active (ie. which
is connected to the common out / input).

From about March 2004 a new version of the A-150 is
available. This allows the full A-100 voltage range
-12V...+12V for the voltages at the O/I resp. I/O soc-
kets. The new version can be identified at the pc
board label "A-100 SYSTEM A-150 DUAL VC
SWITCH VERSION 2

" near the bus connector at the

pc board edge.

CV

O/I

A-150

CV

I/O 1

O/I

I/O 2

I/O 1

I/O 2

DUAL VCS