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

General Radio 1432-L
Decade Resistor
File:Photo Needed
General Radio 1432-L 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 Type 1432-L is a decade resistance box comprised of four Type 510 decade resistance units in series, for a total resistance of 111,100 Ω in steps of 10 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: 111,100 Ω
  • Number of Decades: 4
Type 1432-L Installed 510 Decade Units
Decade Unit Type Total Resistance Resistance/Step Accuracy/Step Maximum Current Power/Step
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