Antique radios, Old Time Radios
QBL4/800
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| Tube type: |
Transmitting Tetrode, air cooled VHF |
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| Identical to |
QBL4/800
= 4X500A
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| Base |
SPECIAL TUBEBASE in general
Top contact with a cap.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 5 Volts / If 13.5 Ampere / Direct |
| Description |
Philips equivalent of 4X500A VHF transmitting tetrode.
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| Information source |
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QBL4/800: Valvo,Senderöhren, 1983
Anonymous 15 Collector
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QBL4/800: Valvo,Senderöhren, 1983
Anonymous 15 Collector
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