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Tube Types



Select or type a tube name to get its specific information.

Sort columns values by clicking their titles - A → Z or Z → A

Tube Base Pin Device Structure
20AQ3 ?
20D3 ?
20D4 ?
20GF6 ?
213PEN ?
215A ?
21A6 ?
21KQ6 ?
22 ?
226 ?
227 6b ?
231D ?
239A ?
24 ?
244A ?
245A ?
247A ?
24A 5e ?
24G ?
257 ?


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Last modified: Jun 5, 2026 20:40
Cape Old Radio - Since Nov, 1996
1996 - 2026 © Carlos Eduardo Lazarini da Fonseca