Racal–Dana 9475 Rubidium Frequency Standard; Racal-Dana 1991...

Racal–Dana 9475 Rubidium Frequency Standard; Racal-Dana 1991 nanosecond Universal Counter; also a Hewlett Packard (HP) 353A precision audio oscillator manufactured by Hewlett Packard during the 1960s and 1970s (with assorted cables and instruction manual for the counter timer) (3) ** The Racal-Dana 9475 Rubidium Frequency Standard is a highly stable, atomic-resonance primary laboratory reference standard designed for precise time synchronization and calibration equipment verification Built around a compact Efratom FRK rubidium atomic clock module, it delivers exceptional long term stability and resistance to drift. The Racal – Dana 9475 Rubidium Frequency Standard provides three isolated, buffered 1 MHz sine wave outputs and a dedicated 10 MHz square wave reference channel for equipment monitoring ** The Racal-Dana 1991 is a high-resolution, microprocessor-controlled benchtop timer and frequency counter engineered for precise electronic waveform analysis Operates across an input frequency range of DC to 160 MHz on its primary dual channels (Inputs A and B) and delivers single-shot 1-nanosecond time interval resolution and up to a 9-digit display breakdown within a 1-second gate time ** Hewlett Packard (HP) 353A precision audio oscillator is designed as a laboratory grade source of stable, low distortion sine wave signals for testing and calibrating electronic equipment ** From the David Read Collection

Estimate:$264.36

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