Module A-138c is a four channel mixer, that allows to add or to subtract four incoming voltages to the output signal. In the middle position of the corresponding control the amplification is zero. Turning the knob counterclockwise the signal is subtracted from the output sum with increasing amount. Turning the knob clockwise the signal is added to the output sum with increasing amount. The output control works in the same way, i.e. the resulting output signal can be additionally attenuated and/or inverted.
For more detailed information please look at the English user's manual: A138c_man.pdf
|Breite/Width: 8TE / 8HP / 40.3 mm
Tiefe/Depth: 35 mm (gemessen ab der Rückseite der Frontplatte / measured from the rear side of the front panel)
Strombedarf/Current: +20mA (+12V) / -20mA (-12V)