AUDIO PLAYGROUND'S ARCHIVES OBERHEIM PAGES
The Oberheim Synthesizer Expander Module is a precision electronic
music system with a variety
of uses. It combines the most often needed circuitry of an electronic
music synthesizer in
one compact versatile module. Two voltage controlled oscillators
are configured with a
four-mode voltage controlled filter, two envelope generators.
a low frequency oscillator,
and a voltage controlled amplifier. The Synthesizer Expander Module
can be used in the following
applications: With a Pitch Follower lo allow other than keyboard
musicians to play
the synthesizer; With a keyboard to form a small electronic music
synthesizer; To expand
the capability of existing synthesizers at low cost; With systems
employing a digital sequencer to allow
both the main synthesizer and the sequencer to be played simultaneously;
With polyphonic keyboards
to form multi-voice polyphonic synthesizer systems; As a precision
laboratory signal generation and
processing device .
The various circuits on the Synthesizer Expander
Module can be interconnected by
potentiometers and switches on The unit's front panel. These interconnections
allow many useful synthesizer
"patches" to be quickly and easily generated. A multitude
of circuit input and output points are available on
connectors internal to the unit. Desired patches not possible
with front panel controls can often be accomplished
by simple wire connections at these internal points. In addition,
these internal points can be brought out to
external connector jacks and connected to other equipment in a
variety of useful ways.
The Expander Module is packaged in a rugged metal case and is
self-powered. Oscillator stability is unsurpassed.
Due to the unique "piggy-back" printed circuit board
construction technique used. the unit is virtually wire free.
which enhances reliability and serviceability.
Dimensions: 9 1/2" wide, 6" high, 9 1/2" deep
Weight: 6 Ibs