1840-A: Difference between revisions
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|discontinued= | |discontinued=1978+ | ||
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The '''General Radio 1840-A''' is an output power meter [[introduced in 1961]] Catalog Q and remained available through Catalog78. | The '''General Radio 1840-A''' is an output power meter [[introduced in 1961]] Catalog Q and remained available through Catalog78. | ||
The 1840-A is an audio power output meter rated at 20 watts maximum at 48 different load impedances in two ranges. Although rated at 20 W | The 1840-A is an audio power output meter rated at 20 watts maximum at 48 different load impedances in two ranges. Although rated at 20 W | ||
maximum the manual describes how this figure can be | maximum the manual describes how this figure can be extended to 200 W, see the manual below. | ||
It replaces Type [[583-A]] designed in 1932. | It replaces Type [[583-A]] designed in 1932. | ||
Revision as of 10:36, 2 March 2024
The General Radio 1840-A is an output power meter introduced in 1961 Catalog Q and remained available through Catalog78. The 1840-A is an audio power output meter rated at 20 watts maximum at 48 different load impedances in two ranges. Although rated at 20 W maximum the manual describes how this figure can be extended to 200 W, see the manual below. It replaces Type 583-A designed in 1932.
Specifications
- Power: 0.1 mW to 20 W.
- Impedance: 0.6 Ω to 32 kΩ in 2 ranges.
- Impedance Accuracy: Maximum error does exceed ± 5% from 100 to 10.000 cps or ± 50% from 20 to 30,000 Hz.
