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Vintage Hewlett Packard HP Model 400D Vacuum Tube Voltmeter *Powers On*:
$115.00
The Vintage Hewlett Packard HP Model 400D Vacuum Tube Voltmeter is a rare and collectible piece of equipment that is capable of measuring voltages using vacuum tubes. Made by the renowned brand HP in the United States, this analog voltmeter is a piece of history that holds value for both collectors and professionals in the field of test meters. It powers on and meter responds to changing voltage settings. Not tested beyond that.
Bx-7
