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Valves

Crystals and Ovens

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A nnnnn

Octal based crystal
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Cathodeon

B7G based crystals
GEC Crystal
GEC Top Band

B7G based crystals
Marconi Crystal
Marconi Crystal

B7G based crystal
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A Cathodeon Crystal Oven

with an unusual ITT crystal

Crystals in valve like enclosures.

© Andy Cowley, 2005     Home