Antique radios, Old Time Radios
P4_Longlife
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Country:
Netherlands
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Brand:
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Longlife, the Hague |
| Tube type: |
Full-Wave Vacuum Rectifier Power-supply |
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Ca. 1925 up to 1945 rare. |
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| Identical to |
P4_Longlife
|
| Similar
Tubes |
Normally replaceable-slightly different:
1561
|
| Production stop |
Feb.1938 |
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
|
| Filament |
Vf 4 Volts / If 2 Ampere / Direct |
| Description |
Va max = 2 x 500 Volt, max DC current = 120 mA.
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| Information source |
- - Manufacturers Literature Sept. 1935
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P4_Longlife: Prüfkarte Röhrenprüfgerät W 18N
Jörg Kulbe
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Just Qvigstad
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