EG and G 181

181 EGG Preamplifier

Current Sensetive Preamplifier

The 181 is a Preamplifier from EGG. Amplify RF and Microwave signals to measure, test, and design circuits. Applications include radio communications, cellphones, EMI testing, and much more.

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EG & G 181 Features:

  • The Model 181 Current Sensative Preamplifier is a high-sensativity low-noise device ideally suited to processing the extremely small current signals provided by photodectors and similar sources.
  • The preamplifier features a virtual-ground input and sensativity selectable by means of a front-panel switch from 10-4   A/V TO 10-9  A/V.
  • A built-in output attenuator allows the output signal to be reduced by a factor of ten.
  • Front-panel overload lamp provides warning when output voltage excursions exceed normal operating levels.
  • There is provision for biasing an external detector by applying an internally derived DC voltage to the input connector.
  • With its small size, high performance, and ease of operation, the instrument should prove of significant value in any application involving low-noise processing of small current signals.