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| Identical to |
GG4
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| Similar
Tubes |
328 (can normally be replaced - small diff'ce)
451 (can normally be replaced - small diff'ce)
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| Base |
Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
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| Filament |
-: Direct /
-: Parallel, (AC/DC) /
If: 3.5 Ampere /
Vf 1.8 Volts /
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49 Preisliste 1931
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