General Radio Vibration Calibrator Model Type 1557-A

Manufacturer: General Radio

Model Number: Type 1557-A

Serial #: 155

Equipment Description: Vibration Calibrator

Label Write-up:
The Vibration Calibrator can be used to check the calibration of vibration pickups (accelerometers), vibration meters, and other vibration-measuring systems that use small crystal-type accelerometers as the sensing elements. Outputs a single frequency of 100 c/s +/-1%. Acceleration is 1 g, rms, +/-10%.

Dates Produced: 1960's

Original Price: $225

The museum's inventory number: MRT-1155

Located at Museum in: Test Equipment Room