1432-F
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The General Radio 1432-F Decade Resistor was introduced in Catalog M (1951) and remained available through Catalog P (1959).
The Type 1432-F is a decade resistance box comprised of three Type 510 decade resistance units in series, for a total resistance of 111 Ω in steps of 0.1 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 Ω
- Number of Decades: 3
Decade Unit Type | Total Resistance | Resistance/Step | Accuracy/Step | Maximum Current | Power/Step |
---|---|---|---|---|---|
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 |