1432-Q: Difference between revisions
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The {{Title|General Radio 1432-Q Decade Resistor}} was introduced in {{Catalog M}} and remained available through {{Catalog S}}. | The {{Title|General Radio 1432-Q Decade Resistor}} was introduced in {{Catalog M}} and remained available through {{Catalog S}}. | ||
The Type 1432-Q is decade resistance box | The Type 1432-Q is a decade resistance box comprised of four Type [[510]] decade resistance units in series, for a total resistance of 1,111,000 Ω. | ||
resistance of 1,111,000 Ω. The [[510]] decade units use an 11 position switch, the first position | 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. | ||
following positions | The switch has a make-before-break configuration, i.e. regardless of the position there is always continuity between the terminals. | ||
break configuration, regardless of the position there | 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. | ||
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:''' 1,111,000 Ω | * '''Total Resistance:''' 1,111,000 Ω | ||
* '''Number of Decades:''' 4 | * '''Number of Decades:''' 4 | ||
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==Links== | ==Links== | ||
* [[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]] | ||
{{1432 Series}} | |||
==Photos== | ==Photos== |
Revision as of 04:28, 30 April 2024
The General Radio 1432-Q Decade Resistor was introduced in Catalog M (1951) and remained available through Catalog S (1965).
The Type 1432-Q is a decade resistance box comprised of four Type 510 decade resistance units in series, for a total resistance of 1,111,000 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: 1,111,000 Ω
- Number of Decades: 4
Decade Unit Type | Total Resistance Ohms | Resistance / Unit Ohms | Accuracy per increment | Maximum Current | Power/step |
---|---|---|---|---|---|
510-D | 1,000 | 100 | ±0.05% | 80 mA | 0.6 W |
510-E | 10,000 | 1000 | ±0.05% | 23 mA | 0.5 W |
510-F | 100,000 | 10,000 | ±0.05% | 7 mA | 0.5 W |
510-G | 1,000,000 | 100,000 | ±0.05% | 2.3 mA | 0.5 W |