1806-A: Difference between revisions
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Type | {{GR Product | ||
|model=1806-A | |||
|codes=1806-9701, 1806-9811 | |||
|class=meters | |||
|summary=Electronic Voltmeter | |||
|image=GR 1806-A front.jpg | |||
|caption=General Radio 1806-A Electronic Voltmeter | |||
|series= | |||
|introduced=1963 | |||
|discontinued=1973 | |||
|designers=James J. Faran, Jr. | |||
|manuals= | |||
* [[Media:GR 1806-AR Electronic Voltmeter 1806-0120-A 02 1964.pdf|General Radio 1806-AR Electronic Voltmeter Manual 1806-0120-A 1964]] | |||
* [[Media:GR 1806-AR Electronic Voltmeter 1806-0120-A 02 1964 Grey Scale Lower Res.pdf|General Radio 1806-AR Electronic Voltmeter Manual 1806-0120-A 1964 (gray-scale lo-res)]] | |||
* [[Media:GR 1806-A Electronic Voltmeter 1806-0100-B 01 1965.pdf|General Radio 1806-A Electronic Voltmeter Manual 1806-0100-B 1965]] | |||
* [[Media:GR 1806-A Electronic Voltmeter 1806-0100-B 01 1965 Grey Scale Lower Res.pdf|General Radio 1806-A Electronic Voltmeter Manual 1806-0100-B 1965 (gray-scale lo-res)]] | |||
* [[Media:GR 1806-A Electronic Voltmeter 1806-0100-C 03_1967.pdf|General Radio 1806-A Electronic Voltmeter Manual 1806-0100-C 1967]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1806-A Electronic Voltmeter}} was introduced in {{Catalog R}} and remained available through {{Catalog U}}. It did not appear in {{Catalog 1973}}. | |||
"The Type 1806-A Electronic Voltmeter is a high-input-impedance, wide-range voltmeter. It is used for the measurement of ac and both positive and negative dc voltages, up to 1500 volts. With the addition of the Type 1806-P1 Tee Connector accessory, it can measure accurately ac voltage on a 50-ohm coaxial line at frequencies up to 1500 MHz. It can also be used as an ohmmeter, for the measurement of dc resistance from 0.2 ohm to 1000 megohms."<ref>"Operating Instructions Type 1806-A Electronic Voltmeter", January 1965, General Radio Company</ref> | |||
The Type 1806-A Electronic Voltmeter superseded the Type 1800-B Vacuum-Tube Voltmeter. It offered improved accuracy, better frequency response, a wider voltage range, and better stability. | |||
==Specifications== | ==Specifications== | ||
==Links== | ==Links== | ||
* [[Media:GR Exp 1806-A 07 1963.pdf|Experimenter July 1963 describing Type 1806-A]] | |||
* Antique Radio Forum [https://antiqueradios.com/forums/viewtopic.php?t=394808 thread discussing General Radio 1806-A VTVM Design Changes] | |||
* [https://www.byan-roper.org/steve/steve-at-play/antique-electronics-and-2/probe-accessories-for-the.html Probe accessories for the GR 1806-A VTVM] | |||
==Photos== | |||
<gallery> | |||
GR 1806-A front.jpg | |||
GR 1806-A side tilt.jpg | |||
GR 1806-A side flat.jpg | |||
GR 1806-A probe.jpg | |||
GR 1806-A closed.jpg | |||
</gallery> | |||
== | ===Internal=== | ||
<gallery> | <gallery> | ||
GR 1806-A internal top.jpg | |||
GR 1806-A internal back.jpg | |||
GR 1806-A internal side.jpg | |||
GR 1806-A internal bottom.jpg | |||
</gallery> | </gallery> | ||
[[Category:Meters]] | [[Category:Meters]] | ||
__NOTOC__ | |||
Latest revision as of 08:11, 23 March 2025
The General Radio 1806-A Electronic Voltmeter was introduced in Catalog R (1963) and remained available through Catalog U (1970). It did not appear in Catalog 1973.
"The Type 1806-A Electronic Voltmeter is a high-input-impedance, wide-range voltmeter. It is used for the measurement of ac and both positive and negative dc voltages, up to 1500 volts. With the addition of the Type 1806-P1 Tee Connector accessory, it can measure accurately ac voltage on a 50-ohm coaxial line at frequencies up to 1500 MHz. It can also be used as an ohmmeter, for the measurement of dc resistance from 0.2 ohm to 1000 megohms."[1]
The Type 1806-A Electronic Voltmeter superseded the Type 1800-B Vacuum-Tube Voltmeter. It offered improved accuracy, better frequency response, a wider voltage range, and better stability.
Specifications
Links
- Experimenter July 1963 describing Type 1806-A
- Antique Radio Forum thread discussing General Radio 1806-A VTVM Design Changes
- Probe accessories for the GR 1806-A VTVM
Photos
Internal
- ↑ "Operating Instructions Type 1806-A Electronic Voltmeter", January 1965, General Radio Company