Antique radios, Old Time Radios
HL22_Ferranti
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Country:
Great Britain (UK)
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| Identical to |
HL22_Ferranti
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
Top contact with a cap.
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| Was used by |
Industrial |
| Filament |
Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Description |
High Voltage Control Tube.
Va <25kV 0.15mA average. Pa <5W. -47V on Vg to cut off.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature Ferranti 1956
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Just Qvigstad
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HL22_Ferranti: eigenes Dokument
Roland Böhme
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