Simpson 303 - VTVM

Vacuum Tube Volt Meter

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The Simpson 303 with test leads and attached power cord.

In 1957 this model listed for $68.00, the roll top case version was $76.00.

A copy of the Simpson 303 manual can be downloaded here.

Controls include: Ohms zero adjustment, AC - DC Voltage / Ohms selector switch,

and a 5 position Ohms Range selector switch.

This model 303 uses a threaded connector for the test lead instead of a BNC type connector.

The ground lead uses the pin jack.

Simpson 303 VTVM Specifications

DC VOLTAGE

Ranges 1.2V, 12V, 60V, 300V, 1200V

AC VOLTAGE

Ranges 1.2V, 12V, 60V, 300V, 1200V

DECIBEL

5 Ranges -20 to +63dB * Reference 0dB= 1mW into 600Ω

RESISTANCE

Ranges Rx1, Rx100, Rx1K, Rx10K, Rx1MEG

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