Antique radios, Old Time Radios
2J21A
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| Tube type: |
Pulse magnetron SHF/EHF (>3 GHz) |
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Ca. 1925 up to 1945 rare. |
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| Identical to |
2J21A
= CV719
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| Similar
Tubes |
Normally replaceable-slightly different:
CV2778
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| Predecessor Tubes |
2J21
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Successor Tubes
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725A
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| Was used by |
Radar |
| Filament |
Vf 6.3 Volts / If 1.3 Ampere / Half indirect |
| Description |
Fixed frequency, 9375MHz; 15 kW peak pulse power. Waveguide output.
Manufactured by Raytheon.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (I)
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Collection of
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| Data Compliance |
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