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The {{Title|General Radio 1803-A Vacuum-Tube Voltmeter}} was available in {{Catalog M}} only. | The {{Title|General Radio 1803-A Vacuum-Tube Voltmeter}} was available in {{Catalog M}} only. | ||
The Type 1803-A is a AC vacuum tube voltmeter with a range from 0.1 to 150 V<sub>RMS</sub> at frequencies to 100 MHz without corrections. Except on the lowest range, its peak reading but the scales are calibrated in RMS volts for sinusoidal voltages. It features hard-wired probe containing dual-diode vacuum tube rectifier | The Type 1803-A is a AC vacuum tube voltmeter with a range from 0.1 to 150 V<sub>RMS</sub> at frequencies to 100 MHz without corrections. Except on the lowest range, its peak reading but the scales are calibrated in RMS volts for sinusoidal voltages. It features hard-wired probe containing dual-diode vacuum tube rectifier. From 20 Hz to about 100 Mhz the accuracy is ±3% but usable up to 200 MHz, refer to the manual. | ||
==Specifications== | ==Specifications== |
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