1652-A: Difference between revisions
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{{GR Product | |||
|model=1652-A | |||
|codes=BUXOM,BADGE,1652-9801,1652-9811 | |||
|class=impedance measurement | |||
|summary=Resistance limit bridge | |||
|image=GR 1652-A Front.jpg | |||
|caption=General Radio 1652-A Resistance Limit Bridge | |||
|series= | |||
|introduced=1951 | |||
|discontinued=1968 | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 1652A Resistance Limit Bridge 1652-0100-G 1964.pdf|General Radio 1652-A Resistance Limit Bridge 1652-0100-G 1964]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1652-A Resistance Limit Bridge}} was introduced in {{Catalog M}} and remained available through {{Catalog T}}. | |||
Based on a [[wikipedia:Wheatstone bridge|Wheatstone bridge]] circuit, the Type 1652-A will compare the unknown to an external or internal standard and display difference as a percentage. | |||
Its internal standard is made up of seven [[510|Type 510 Decade Resistance]] units connected in series. | |||
==Specifications== | ==Specifications== | ||
* '''Resistance Range:''' As a limit bridge, 1 ohm to 1,111,111 ohms with internal standard; for null measurement, 1 ohm to 1,111,111 ohms with internal standard | |||
* '''Voltage Applied to Unknown:''' The voltage across the unknown one volt when the meter indication is zero. | |||
* '''Accuracy:''' As a limit bridge, ±0.5% or better; for matching, ±0.2% | |||
* '''Limit Range:''' Meter reads from –20% to +20% | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1652-A 01_1952.pdf|Experimenter describing Type 1652-A January 1952]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1652-A Front.jpg | |||
GR 1652-A Left.jpg | |||
GR 1652-A Right.jpg | |||
GR 1652-A Rear.jpg | |||
GR 1652-A Rear Inside.jpg | |||
GR 1652-A Bottom.jpg | |||
GR 1652-A Decade Resistor Close-up B.jpg | |||
GR 1652-A Decade Resistor Close-up.jpg | |||
</gallery> | </gallery> | ||
[[Category:Impedance measurement]] | [[Category:Impedance measurement]] | ||
Latest revision as of 18:49, 16 April 2024
The General Radio 1652-A Resistance Limit Bridge was introduced in Catalog M (1951) and remained available through Catalog T (1968).
Based on a Wheatstone bridge circuit, the Type 1652-A will compare the unknown to an external or internal standard and display difference as a percentage. Its internal standard is made up of seven Type 510 Decade Resistance units connected in series.
Specifications
- Resistance Range: As a limit bridge, 1 ohm to 1,111,111 ohms with internal standard; for null measurement, 1 ohm to 1,111,111 ohms with internal standard
- Voltage Applied to Unknown: The voltage across the unknown one volt when the meter indication is zero.
- Accuracy: As a limit bridge, ±0.5% or better; for matching, ±0.2%
- Limit Range: Meter reads from –20% to +20%
