Model 523A
The Trig-Tek, Inc. Model 523A Mixer/Monitor is a line amplifier that permits mixing of up to three individual signal sources. Each channel offers three input selections, single ended, isolated or current. The current mode accommodates voltage mode accelerometers. Each input channel can be switched in or out from the front panel and has a continuously variable gain adjustment. A Master Gain control allows overall control of the low impedance, composite output signal. For shaker protection, an interlock feature insures the Master Gain is completely attenuated before the unit will startup. The output incorporates an adjustable clipping circuit which provides overall peak to peak signal limiting from 2 sigma to infinity. A true RMS indicator together with a front panel selector allows monitoring of each individual input channel, the composite output or an available external input.
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Trig-Tek
11458 Knott Ave.
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