1803-A: Difference between revisions
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{{GR Product | |||
|model=1803-A | |||
|codes=ABOOM | |||
|class=meters | |||
|summary=Vacuum-Tube Voltmeter | |||
|image=GR 1803-A Close-Up.jpg | |||
|caption=General Radio 1803-A Vacuum-Tube Voltmeter | |||
|series=1803 | |||
|introduced=1951 | |||
|discontinued=1951 | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 1803-A AC Voltmeter 714-A.pdf|General Radio 1803-A Vacuum-Tube Voltmeter Manual 714-A]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1803-A Vacuum-Tube Voltmeter}} was available in {{Catalog M}} only. | |||
The Type 1803-A is an 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, it is peak-reading, but the scales are calibrated in RMS volts for sinusoidal voltages. | |||
The 1803-A features a hard-wired probe containing a dual-diode vacuum tube rectifier. From 20 Hz to about 100 MHz, accuracy is ±3% but the instrument is usable up to 200 MHz, refer to the manual for details. | |||
==Specifications== | ==Specifications== | ||
* '''Voltage Range:''' 0.1 to 150 V<sub>RMS</sub> | |||
* '''Accuracy:''' ±3% of full scale on all ranges | |||
* '''Input Impedance:''' 7.7 MΩ at low frequencies (see manual) | |||
* '''Frequency:''' 100 MHz; up to 200 MHz with corrections | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1803-A 04_1950.pdf|Experimenter April 1950 describing Type 1803-A]] | |||
* [[1803-B]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1803-A Front.jpg | |||
GR 1803-A Left Side.jpg | |||
GR 1803-A Rear.jpg | |||
GR 1803-A Case Inside.jpg | |||
GR 1803-A Inside Rear A.jpg | |||
GR 1803-A Inside Rear B.jpg | |||
GR 1803-A Inside Rear.jpg | |||
GR 1803-A Probe Close-Up a.jpg | |||
GR 1803-A Probe Close-Up B.jpg | |||
</gallery> | </gallery> | ||
[[Category:Meters]] | [[Category:Meters]] | ||
Latest revision as of 17:40, 24 May 2024
The General Radio 1803-A Vacuum-Tube Voltmeter was available in Catalog M (1951) only.
The Type 1803-A is an AC vacuum-tube voltmeter with a range from 0.1 to 150 VRMS at frequencies to 100 MHz without corrections. Except on the lowest range, it is peak-reading, but the scales are calibrated in RMS volts for sinusoidal voltages.
The 1803-A features a hard-wired probe containing a dual-diode vacuum tube rectifier. From 20 Hz to about 100 MHz, accuracy is ±3% but the instrument is usable up to 200 MHz, refer to the manual for details.
Specifications
- Voltage Range: 0.1 to 150 VRMS
- Accuracy: ±3% of full scale on all ranges
- Input Impedance: 7.7 MΩ at low frequencies (see manual)
- Frequency: 100 MHz; up to 200 MHz with corrections
