German "Birka" thermo-electric "wire-type" (no bimetal) relay in vacuum tube

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German Birka' thermo-electric 'wire-type' (no bimetal) relay in
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German "Birka" thermo-electric "wire-type" (no bimetal) relay in vacuum tube, smallest standard size no.602

Details

Category:: Electricity Supply

Object Number:: 1932-394

type:: relay

credit:: Birka Regulator Co.

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German "Birka" thermo-electric "wire-type" (no bimetal) relay in vacuum tube

Details

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