Antique radios, Old Time Radios
527A
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Country:
United States of America (USA)
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| Identical to |
527A
= PL-185
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| Similar
Tubes |
Normally replaceable-slightly different:
527
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| Base |
SPECIAL TUBEBASE in general
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| Was used by |
Radar |
| Filament |
Vf 5.5 Volts / If 135 Ampere / Direct |
| Description |
Power triode used either as VHF oscillator or as radar pulse modulator. Thoriated tungsten filamentary cathode.
- 300 W plate dissipation
- 20 kV plate voltage
- 100 A peak filament emission
Four tubes in AN/TPS-18 gave 1MW RF at 210-225MHz. As modulator, one single tube could switch 30KV at 60A.
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| Information source |
-- Original-techn. papers. Pulse Generators, MIT Rad. Lab., vol. 5
Tube Lore (I)
Tube Lore (II)
-- Collector info (Sammler)
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Collection of
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