The object has nine potentiometers, many intergrated circuits, and various other components on one side. In the corner there is an extraction lever. The circuit is visible on the back.
Manufacturer
Contemporary control systems, Inc.
Place Manufactured
U.S.
Identifying Numbers
Model number
S864 4
Printed in white on the component side of the board
Other number
11819
Printed in black on the white sticker on the back of the module
Other number
4
Handwritten on the yellow sticker on the component side
