Antique radios, Old Time Radios
4J61
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Country:
United States of America (USA)
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| Identical to |
4J61
= QK60
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| Predecessor Tubes |
CM16B
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Filament |
Vf 6.3 Volts / If 3.8 Ampere / Indirect |
| Description |
50-70W pulse magnetron for radar jammers. Up to 2KW input pulses, depending upon the duty cycle, since the structure was basically designed for cw operations. Typical operation 125mA at 1.5KV input pulse. 2450 to 2720MHz tuning range. Integral magnet, coaxial output.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (I)
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4J61
Emilio Ciardiello
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Just Qvigstad
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