546-C: Difference between revisions
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(Created page with "Type '''546-C Audio-Frequency Microvolter'''. ==Specifications== ==Links== ==Photos== <gallery> </gallery> Category:Meters") |
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{{GR Product | |||
|model=546-C | |||
|codes=CROWN | |||
|class=meters | |||
|summary=Audio-Frequency Microvolter | |||
|image=GR 546-C Close-up.jpg | |||
|caption=General Radio 546-C Audio-Frequency Microvolter | |||
|series=546 | |||
|introduced=1948 | |||
|discontinued=1968 | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 546-C Audio-Frequency Microvolter 0546-0100-L 02-1962.pdf|General Radio 546-C Audio-Frequency Microvolter Manual 0546-0100-L 1962]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 546-C Audio-Frequency Microvolter}} was introduced in {{Catalog L}} and remained available through {{Catalog T}}. | |||
It is an audio-frequency voltage divider and attenuator, an updated version of the earlier [[546-B]] with changes being improvements to the meter, and adoption of the 600 Ω impedance standard for audio applications. | |||
The primary application of the 546-C is to supply audio-frequency voltages at attenuated and calibrated levels, but it can also be used to measure unknown voltages by "Substitution" and "Insert-Voltage" methods. | |||
Any audio oscillator that can supply 2.2 V into 600 Ω will be sufficient to drive the Microvolter. | |||
==Specifications== | ==Specifications== | ||
* '''Output Voltage Range:''' 0.5 μV to 1.0 V, with 2.2 V input voltage | |||
* '''Accuracy:''' For open-circuit output voltages, calibration is accurate within ±(3% + 0.5 μV) for output settings above 1 μV and for all frequencies between 20 and 20,000 Hz | |||
* '''Output Impedance:''' approximately 600 Ω ±5% | |||
* '''Input Impedance:''' approximately 600 Ω | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 546-C 06_1948.pdf|Experimenter June 1948 describing Type 546-C]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 546-C Front.jpg | |||
GR 546-C Left.jpg | |||
GR 546-C Top.jpg | |||
GR 546-C Case Inside.jpg | |||
GR 546-C Inside Rear A.jpg | |||
GR 546-C Inside Bottom.jpg | |||
GR 546-C Inside Left.jpg | |||
GR 546-C Inside Rear.jpg | |||
GR 546-C Inside Right.jpg | |||
GR 546-C Inside Top.jpg | |||
</gallery> | </gallery> | ||
[[Category:Meters]] | [[Category:Meters]] | ||
Latest revision as of 00:54, 26 April 2024
The General Radio 546-C Audio-Frequency Microvolter was introduced in Catalog L (1948) and remained available through Catalog T (1968).
It is an audio-frequency voltage divider and attenuator, an updated version of the earlier 546-B with changes being improvements to the meter, and adoption of the 600 Ω impedance standard for audio applications.
The primary application of the 546-C is to supply audio-frequency voltages at attenuated and calibrated levels, but it can also be used to measure unknown voltages by "Substitution" and "Insert-Voltage" methods.
Any audio oscillator that can supply 2.2 V into 600 Ω will be sufficient to drive the Microvolter.
Specifications
- Output Voltage Range: 0.5 μV to 1.0 V, with 2.2 V input voltage
- Accuracy: For open-circuit output voltages, calibration is accurate within ±(3% + 0.5 μV) for output settings above 1 μV and for all frequencies between 20 and 20,000 Hz
- Output Impedance: approximately 600 Ω ±5%
- Input Impedance: approximately 600 Ω
