1432-Q: Difference between revisions
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{{GR Product | {{GR Product | ||
|model=1432-Q | |model=1432-Q | ||
|codes=DEPOT | |||
|class=resistance standards | |class=resistance standards | ||
|summary=Decade Resistor | |summary=Decade Resistor | ||
Line 15: | Line 16: | ||
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 in steps of 100 Ω. | ||
resistance of 1,111,000 Ω. The [[510]] decade units use an 11 position switch, the first position | |||
following positions | 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. | ||
break configuration, regardless of the position there | The switch has a make-before-break configuration, i.e. regardless of the position there is always continuity between the terminals. | ||
Type 938 equipped with a shorting link to the case. The decades are housed in an aluminum case shielded and insulated | 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. | ||
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 | ||
{| class="wikitable" style="margin:auto" | {| class="wikitable" style="margin:auto" | ||
|+ Type 1432-Q Installed 510 Decade Units | |+ Type 1432-Q Installed 510 Decade Units | ||
|- | |- | ||
! Decade Unit Type!! Total Resistance | ! Decade Unit Type!! Total Resistance!! Resistance/Step !! Accuracy/Step !! Maximum Current !! Power/Step | ||
|- | |- | ||
|[[510-D]] || 1, | |[[510-D]] || 1,000 Ω || 100 Ω ||±0.05% || 80 mA || 0.6 W | ||
|- | |- | ||
|[[510-E]] || 10, | |[[510-E]] || 10,000 Ω || 1000 Ω ||±0.05% || 23 mA || 0.5 W | ||
|- | |- | ||
|[[510-F]] || 100, | |[[510-F]] || 100,000 Ω || 10,000 Ω ||±0.05% || 7 mA || 0.5 W | ||
|- | |- | ||
|[[510-G]] || 1,000, | |[[510-G]] || 1,000,000 Ω || 100,000 Ω ||±0.05% || 2.3 mA || 0.5 W | ||
|- | |- | ||
|} | |} | ||
==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== |
Latest revision as of 17:55, 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 in steps of 100 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 | Resistance/Step | Accuracy/Step | Maximum Current | Power/Step |
---|---|---|---|---|---|
510-D | 1,000 Ω | 100 Ω | ±0.05% | 80 mA | 0.6 W |
510-E | 10,000 Ω | 1000 Ω | ±0.05% | 23 mA | 0.5 W |
510-F | 100,000 Ω | 10,000 Ω | ±0.05% | 7 mA | 0.5 W |
510-G | 1,000,000 Ω | 100,000 Ω | ±0.05% | 2.3 mA | 0.5 W |