1432-U: Difference between revisions
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{{GR Product | {{GR Product | ||
|model=1432-U | |model=1432-U | ||
|codes=DEWIN | |||
|class=resistance standards | |class=resistance standards | ||
|summary=Decade Resistor | |summary=Decade Resistor | ||
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The {{Title|General Radio 1432-U Decade Resistor}} was introduced in {{Catalog Q}} and remained available through {{Catalog S}}. | The {{Title|General Radio 1432-U Decade Resistor}} was introduced in {{Catalog Q}} and remained available through {{Catalog S}}. | ||
The Type 1432-U is decade resistance box | The Type 1432-U is a decade resistance box comprised of four Type [[510]] decade resistance units in series, for a total resistance of 111.1 Ω in steps of 0.01 Ω. | ||
111.1 Ω | |||
The [[510]] decade units use an 11-position switch, with the first position shorting the decade, and the following positions increasing the resistance by one step. | |||
The switch has a make-before-break configuration, i.e. regardless of the position there is always continuity between the terminals. | |||
The terminals are Type 938 equipped with a shorting link to the case. The decades are housed in an aluminum case shielded and insulated from its resistance terminals. | |||
==Specifications== | ==Specifications== | ||
* '''Total Resistance:'''111.1 Ω | * '''Total Resistance:''' 111.1 Ω | ||
* '''Number of Decades:''' 4 | * '''Number of Decades:''' 4 | ||
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|+ Type 1432-U Installed 510 Decade Units | |+ Type 1432-U Installed 510 Decade Units | ||
|- | |- | ||
! Decade Unit Type!! Total Resistance | ! Decade Unit Type!! Total Resistance!! Resistance/Step !! Accuracy/Step !! Maximum Current !! Power/Step | ||
|- | |- | ||
|[[510-AA]]|| 0. | |[[510-AA]]|| 0.1 Ω || 0.01 Ω ||±02% || 4 A || 0.6 W | ||
|- | |- | ||
|[[510-A]] || | |[[510-A]] || 1 Ω || 0.1 Ω ||±0.5% || 1.6 A || 0.6 W | ||
|- | |- | ||
|[[510-B]] || | |[[510-B]] || 10 Ω || 1 Ω ||±0.15% || 800 mA || 0.6 W | ||
|- | |- | ||
|[[510-C]] || | |[[510-C]] || 100 Ω || 10 Ω ||±0.05% || 250 mA || 0.6 W | ||
|- | |- | ||
|} | |} | ||
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* [[Media:GR Exp 1432 and 510 Series 06_1951.pdf|Experimenter June 1951 describing Type 1432 Series]] | * [[Media:GR Exp 1432 and 510 Series 06_1951.pdf|Experimenter June 1951 describing Type 1432 Series]] | ||
* [[Media:GR Exp 1432-T and U and 11_1960.pdf|Experimenter November 1960 describing Types 1432-T and 1432-U]] | * [[Media:GR Exp 1432-T and U and 11_1960.pdf|Experimenter November 1960 describing Types 1432-T and 1432-U]] | ||
{{1432 Series}} | |||
==Photos== | ==Photos== |
Latest revision as of 18:43, 14 May 2024
The General Radio 1432-U Decade Resistor was introduced in Catalog Q (1961) and remained available through Catalog S (1965).
The Type 1432-U is a decade resistance box comprised of four Type 510 decade resistance units in series, for a total resistance of 111.1 Ω in steps of 0.01 Ω.
The 510 decade units use an 11-position switch, with the first position shorting the decade, and the following positions increasing the resistance by one step. The switch has a make-before-break configuration, i.e. regardless of the position there is always continuity between the terminals. The terminals are Type 938 equipped with a shorting link to the case. The decades are housed in an aluminum case shielded and insulated from its resistance terminals.
Specifications
- Total Resistance: 111.1 Ω
- Number of Decades: 4
Decade Unit Type | Total Resistance | Resistance/Step | Accuracy/Step | Maximum Current | Power/Step |
---|---|---|---|---|---|
510-AA | 0.1 Ω | 0.01 Ω | ±02% | 4 A | 0.6 W |
510-A | 1 Ω | 0.1 Ω | ±0.5% | 1.6 A | 0.6 W |
510-B | 10 Ω | 1 Ω | ±0.15% | 800 mA | 0.6 W |
510-C | 100 Ω | 10 Ω | ±0.05% | 250 mA | 0.6 W |
Links
- Experimenter June 1951 describing Type 1432 Series
- Experimenter November 1960 describing Types 1432-T and 1432-U