1432-F
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 decade resistance box is comprised of three Type 510 decade resistance units in series for a total resistance of 111 Ω. 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.
Specifications
- Total Resistance: 111 Ω
- Number of Decades: 3
| Decade Unit Type | Total Resistance Ohms | Resistance / Unit Ohms | Accuracy per increment | Maximum Current | Power/step |
|---|---|---|---|---|---|
| 510-A | 1 | 0.1 | ±0.5% | 1.6 A | 0.6 W |
| 510-B | 10 | 1 | ±0.15% | 800 mA | 0.6 W |
| 510-C | 100 | 10 | ±0.05% | 250 mA | 0.6 W |