1840-A: Difference between revisions
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* [[Media:GR 1840-A Output Power Meter.pdf|General Radio 1840-A Manual 1840-01OO-G (1972)]] | * [[Media:GR 1840-A Output Power Meter.pdf|General Radio 1840-A Manual 1840-01OO-G (1972)]] | ||
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The '''General Radio 1840-A''' is an output power meter [[introduced in 1961]] Catalog Q and remained available through | The '''General Radio 1840-A''' is an output power meter [[introduced in 1961]] Catalog Q and remained available through Catalog 1978. | ||
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 extended to 200 W, see the manual below. | maximum the manual describes how this figure can be extended to 200 W, see the manual below. | ||
Revision as of 20:12, 7 March 2024
The General Radio 1840-A is an output power meter introduced in 1961 Catalog Q and remained available through Catalog 1978.
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.
