Antique radios, Old Time Radios
1230
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Country:
United States of America (USA)
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| Identical to |
1230
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| Similar
Tubes |
Other class quality (otherwise equal):
30
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| Predecessor Tubes |
30
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Was used by |
Technology / Measurement |
| Filament |
Vf 2 Volts / If 0.06 Ampere / Direct |
| Description |
Special version of 30, with low grid current for use in electrometers. The tube has a ceramic base.
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Dimensions (WHD)
incl. pins / tip |
41 x 91 x mm / 1.61 x 3.58 x inch |
| Information source |
- - Manufacturers Literature
Tube Lore (II) p. 227
Tube Lore (I)
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1230
Emilio Ciardiello
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Just Qvigstad
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