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* [[Media:GRwiki 1234 SWR Meter 1234-0100-A 1968.pdf|General Radio 1234 Standing-Wave Meter 1234-0100-A 1968]] | * [[Media:GRwiki 1234 SWR Meter 1234-0100-A 1968.pdf|General Radio 1234 Standing-Wave Meter 1234-0100-A 1968]] | ||
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The '''General Radio 1234 Standing-Wave Meter''' was introduced in | The '''General Radio 1234 Standing-Wave Meter''' was introduced in {{Catalog T}} and remained available through {{Catalog 1978}}. | ||
The Type 1234 Standing-Wave Meter is a low noise three stage tuned amplifier operating at a frequency 1 kHz. Its designed to measure standing waves (maximums and minimums) when paired with a slotted line like [[874-LB]]. Either a crystal rectifier or a bolometer can be used as a detector. The panel meter is equipped with lamps at the far end of each scale to indicate which is in use. There are also ac and dc outputs for use with a recorder. | The Type 1234 Standing-Wave Meter is a low noise three stage tuned amplifier operating at a frequency 1 kHz. Its designed to measure standing waves (maximums and minimums) when paired with a slotted line like [[874-LB]]. Either a crystal rectifier or a bolometer can be used as a detector. The panel meter is equipped with lamps at the far end of each scale to indicate which is in use. There are also ac and dc outputs for use with a recorder. | ||