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874-VR: Difference between revisions
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{{GR Product | |||
==Specifications== | |model=874-VR | ||
|codes=COAXRECTOR | |||
|class=coaxial components | |||
|summary= | |||
|image=GR 874-VR-1.jpg | |||
|caption=General Radio 874-VR | |||
|series=GR-874 | |||
|introduced=1951 | |||
|discontinued=(?) | |||
|designers= | |||
|manuals= | |||
* [[Media:GR-0874-0213-D 1963-11 874-VR-Manual.pdf|874-VR Manual 0874-0213-D (1963)]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 874-VR}} is a "voltmeter rectifier" with two [[GR-874 connector]]s for the signal, and another GR-874 connector for the rectified output. | |||
It is used in frequency response measurements with a [[1750-A|1750-A Sweep Drive]] and [[1263-C|1263-C Amplitude Regulating Power Supply]]. | |||
An [[874-VI|874-VI Voltmeter Indicator]] can be used for calibrated measurements from 0.1 to 2 V. | |||
It contains a 1N23B diode and a mica capacitor. | |||
The '''874-VRL''' is identical but has locking 874 connectors. | |||
The [[874-VQ]] is similar to the 874-VR, but omits the 874-VR's 50 Ω series resistor, and includes matching elements to compensate for the discontinuity caused by the diode capacitance. | |||
==Key Specifications== | |||
* Frequency range: 15 MHz to 2.5 GHz (correction required above 1 GHz) | |||
* Input: 0.1 V to 2 V | |||
* VSWR: ≤1.1 @ 1 GHz, ≤1.2 @ 2 GHz; rising rapidly above 2.5 GHz | |||
* Resonant frequency: 3.8 GHz | |||
==Links== | ==Links== | ||
* [[874-VRL]] is the locking version. | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 874-VR-1.jpg | |||
</gallery> | </gallery> | ||
[[Category:Coaxial Elements]] | [[Category:Coaxial Elements]] | ||
[[Category:GR-874]] | [[Category:GR-874]] | ||