Hewlett-Packard VTVM Model 400DR

Manufacturer: Hewlett-Packard

Model Number: 400DR

Serial #: 205443

Equipment Description: VTVM

Label Write-up:
Vacuum Tube Volt Meter. The 400D is a wide-band RMS voltmeter and amplifier. It reads AC from 1 millivolt to 300 volts full scale in 12 ranges; from 10 Hz to 4 MHz. 10 Mohms input impedance. The model 400DR is the rack mounted version of the model 400D.

Dates Produced: 1954 - 1967

Original Price: $255

The museum's inventory number: MRT-1213

Located at Museum in: Test Equipment Room