1432-M: Difference between revisions

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{{GR Product
{{GR Product
|model=1432-M
|model=1432-M
|codes=DEMIT
|class=resistance standards
|class=resistance standards
|summary=Decade Resistor
|summary=Decade Resistor
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The {{Title|General Radio 1432-M Decade Resistor}} was introduced in {{Catalog M}} and remained available through {{Catalog S}}.  
The {{Title|General Radio 1432-M Decade Resistor}} was introduced in {{Catalog M}} and remained available through {{Catalog S}}.  


The Type 1432-M is decade resistance box is comprised of five Type [[510]] decade resistance units in series for a total resistance of 111.11 kΩ. The [[510]] decade units use an 11 position switch, the first position shorts the decade the following positions increase the resistance by a factor of 1. The decade switch is what's referred to as a make before break configuration, regardless of the position there's always a continuity at it's 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.
The Type 1432-M is decade resistance box comprised of five Type [[510]] decade resistance units in series, for a total resistance of 111,110 kΩ in steps of 1 Ω.


See the table below for [[510]] decade units used.
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:'''111,110 Ω
* '''Total Resistance:''' 111,110 Ω
* '''Number of Decades:''' 5
* '''Number of Decades:''' 5


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|+ Type 1432-M Installed 510 Decade Units  
|+ Type 1432-M Installed 510 Decade Units  
|-
|-
! Decade Unit Type!! Total Resistance Ohms!! Resistance / Unit Ohms  !! Accuracy per increment !! Maximum Current !! Power/step
! Decade Unit Type!! Total Resistance!! Resistance/Step !! Accuracy/Step !! Maximum Current !! Power/Step
|-
|-
|[[510-B]] || 10       || 1         ||±0.15%  || 800 mA || 0.6 W
|[[510-B]] || 10 Ω       || 1 Ω         ||±0.15%  || 800 mA || 0.6 W
|-
|-
|[[510-C]] || 100       || 10       ||±0.05%  || 250 mA || 0.6 W
|[[510-C]] || 100 Ω       || 10 Ω       ||±0.05%  || 250 mA || 0.6 W
|-
|-
|[[510-D]] || 1,000     || 100       ||±0.05%  || 80 mA  || 0.6 W
|[[510-D]] || 1,000 Ω     || 100 Ω       ||±0.05%  || 80 mA  || 0.6 W
|-
|-
|[[510-E]] || 10,000   || 1000     ||±0.05%  || 23 mA  || 0.5 W
|[[510-E]] || 10,000 Ω   || 1000 Ω     ||±0.05%  || 23 mA  || 0.5 W
|-
|-
|[[510-F]] || 100,000   || 10,000   ||±0.05%  || 7 mA  || 0.5 W
|[[510-F]] || 100,000 Ω   || 10,000 Ω   ||±0.05%  || 7 mA  || 0.5 W
|-
|-
|}
|}
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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==
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GR 1432-M Inside Side.jpg
GR 1432-M Inside Side.jpg
GR 1432-M Inside.jpg
GR 1432-M Inside.jpg
GR 1432-M Inside Decade B to D.jpg|[[510-B]], [[510-C]], [[510-D]]
GR 1432-M 510-B.jpg|Type [[510-B]] Decade
GR 1432-M Inside Decade B C D.jpg|[[510-D]], [[510-E]], [[510-F]]
GR 1432-M 510-C.jpg|Type [[510-C]] Decade
GR 1432-M 510-D.jpg|Type [[510-D]] Decade
GR 1432-M 510-E.jpg|Type [[510-E]] Decade
GR 1432-M 510-F.jpg|Type [[510-F]] Decade
</gallery>
</gallery>


[[Category:Resistance Standards]]
[[Category:Resistance Standards]]

Latest revision as of 09:44, 1 May 2024

General Radio 1432-M
Decade Resistor
General Radio 1432-M Decade Resistor

Available from 1951 to 1965

Manuals
Catalog History
 Document Year Page
Catalog M 1951 32
Catalog N 1954 40
Catalog O 1956 169
Catalog P 1959 156
Catalog Q 1961 150
Catalog R 1963 161
Catalog S 1965 204
(All manuals in PDF format unless noted otherwise)

The General Radio 1432-M Decade Resistor was introduced in Catalog M (1951) and remained available through Catalog S (1965).

The Type 1432-M is decade resistance box comprised of five Type 510 decade resistance units in series, for a total resistance of 111,110 kΩ in steps of 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

  • Total Resistance: 111,110 Ω
  • Number of Decades: 5
Type 1432-M Installed 510 Decade Units
Decade Unit Type Total Resistance Resistance/Step Accuracy/Step Maximum Current Power/Step
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
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

Links

  • 1432-F – 3 decades, 111 Ω in steps of 0.1 Ω
  • 1432-U – 4 decades, 111.1 Ω in steps of 0.01 Ω
  • 1432-K – 4 decades, 1,111 Ω in steps of 0.1 Ω
  • 1432-T – 5 decades, 1,111.1 Ω in steps of 0.01 Ω
  • 1432-C – 3 decades, 11,100 Ω in steps of 10 Ω
  • 1432-J – 4 decades, 11,110 Ω in steps of 1 Ω
  • 1432-N – 5 decades, 11,111 Ω in steps of 0.1 Ω
  • 1432-W – 6 decades, 11,111.1 Ω in steps of 0.01 Ω
  • 1432-L – 4 decades, 111,100 Ω in steps of 10 Ω
  • 1432-M – 5 decades, 111,110 Ω in steps of 1 Ω
  • 1432-X – 6 decades, 111,111 Ω in steps of 0.1 Ω
  • 1432-A – 3 decades, 1,110,000 Ω in steps of 1000 Ω
  • 1432-Q – 4 decades, 1,111,000 Ω in steps of 100 Ω
  • 1432-P – 5 decades, 1,111,100 Ω in steps of 10 Ω
  • 1432-B – 6 decades, 1,111,110 Ω in steps of 1 Ω
  • 1432-Y – 5 decades, 11,111,000 Ω in steps of 100 Ω
  • 1432-Z – 6 decades, 11,111,100 Ω in steps of 10 Ω

Photos

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