1803-A: Difference between revisions

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-Type '''1803-A Vacuum-Tube Voltmeter'''.
+{{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 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 probe tip is shorted when in the stored position for the zero adjust function. From 20 Hz to about 100 Mhz the accuracy is ±3% but usable up to 200 MHz, refer to the manual.
 ==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==
+* [[Media:GR Exp 1803-A 04_1950.pdf|Experimenter April 1950 describing Type 1803-A]]
 ==Photos==
 <gallery>
+GR 1803-A Front.jpg
+GR 1803-A Left SideGR.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>
 [[Category:Meters]]