EG&G ORTEC 542 LINEAR GATE STRETCHER- fully functional-

Description

ORTEC 542 LINEAR GATE STRETCHER.
It may have some cosmetic issues but it is fully functional.
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For passing and blocking analog signals in the range from +0.1 to +10 V
Ungated or gated with coincidence or anticoincidence gating
Strobed linear output with internal or external strobe
Adjustable output delay and width
The ORTEC Model 542 Linear Gate and Stretcher accepts a linear input pulse through an input linear gate, stretches the peak amplitude of the input pulse, and generates an output pulse with amplitude equal to the input, and shaped to a uniform rise time and width. It is useful for selecting and inhibiting linear signals according to chosen coincidence or timing conditions. The Model 542 features excellent temperature stability, integral linearity, response to high counting rates, and simplicity of operation. In addition, the Linear Gate section features total dc-coupling with essentially zero pedestal and feedthrough.
https://www.ortec-online.com/products/electronics/delays-gates-and-logic-modules/542