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| Identical to |
12SL7
= 12SL7GT
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vk)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
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| Description |
There is no metal tube 12SL7, see under 12SL7GT
Text in other
languages (may
differ)
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Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
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B.W.
Wolfgang Bauer
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Telefunken Werkstattbuch
Wolfgang Bauer
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