1840-A: Difference between revisions
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* [[Media:GR 1840-A Output Power Meter.pdf|General Radio 1840-A Manual 1840- | * [[Media:GR 1840-A Output Power Meter.pdf|General Radio 1840-A Manual 1840-0100-G (1972)]] | ||
{{Catalog History}} | {{Catalog History}} | ||
}} | }} | ||
The '''General Radio 1840-A''' is an output power meter introduced in {{Catalog | The '''General Radio 1840-A''' is an output power meter introduced in {{Catalog R}}. It remained available through {{Catalog 1978}}. It replaces Type [[583-A]] designed in 1932. | ||
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. | ||
maximum the manual describes how this figure can be extended to 200 W | Although rated at 20 W maximum, the manual describes how this figure can be extended to 200 W. | ||
==Specifications== | ==Specifications== | ||
* '''Power:''' 0.1 mW to 20 W | * '''Power:''' 0.1 mW to 20 W | ||
* '''Impedance:''' 0.6 Ω to 32 kΩ in 2 ranges | * '''Impedance:''' 0.6 Ω to 32 kΩ in 2 ranges | ||
* '''Impedance Accuracy:''' Maximum error | * '''Impedance Accuracy:''' Maximum error ±5% from 100 Hz to 10 kHz, or ±50% from 20 Hz to 30 kHz | ||
==Links== | ==Links== | ||
Revision as of 16:26, 4 April 2024
The General Radio 1840-A is an output power meter introduced in Catalog R (1963). It remained available through Catalog 1978. It replaces Type 583-A designed in 1932.
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.
Specifications
- Power: 0.1 mW to 20 W
- Impedance: 0.6 Ω to 32 kΩ in 2 ranges
- Impedance Accuracy: Maximum error ±5% from 100 Hz to 10 kHz, or ±50% from 20 Hz to 30 kHz
