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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
257A ?
259A ?
259B ?
25A6 ?
25A7 ?
25AC5 ?
25AX4 ?
25B5 ?
25B6 ?
25B8 ?
25BQ6 ?
25C6 ?
25CD6 ?
25CU6 ?
25D8 ?
25E6 ?
25G-B6 ?
25L6 7ac Radio ?
25N6 ?
25S ?


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