| Country: |
United States of America (USA) |
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Brand: |
Common type USA |
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Tube type: |
Pentagrid-Converter (Heptode) |
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Tube ID = 21237
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| Identical to |
1R5_Loktal
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| Similar
Tubes |
1R5 (other base)
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| Base |
Loctal-8, B8G (Sylvania, 1938)
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| Filament |
If: 0.05 Ampere /
Vf 1.4 Volts /
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