Radios antiguas y Radios de Colección
EM-4
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País:
Estados Unidos
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| Idéntica a |
EM-4
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| Descripción |
Mercury displacement contactor, DPST.
Mercury displacement and mercury wetted relays were sometimes used as high-speed pulse generators due to their unique feature of making and breaking circuits in very few tens of picoseconds with no bouncing.
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