20th CENTURY ELECTRONICS LTD. D3AB/215 3-inch double-beam CRT
Tube cathodique à double canon
Doppelstrahl-Bildröhre
20th Century Electronics (changed to Centronic in 1978) was founded in 1945 and became a limited company in 1949.
Initially they manufactured specialist valves such as cathode-ray tubes and Geiger-Muller tubes.

Longueur • Length • Länge : 33,5 cm • 13" 1/4
Diamètre • Diameter • Durchmesser : 88 mm • 3" 1/2






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