Antique radios, Old Time Radios
706A
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Country:
United States of America (USA)
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| Identical to |
706A
= CV3588
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| Similar
Tubes |
Other characteristic (electr. data):
2J61
; 706B
; 706C
Other base:
606L
Multiple differences or of other kind:
2J61A
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| Predecessor Tubes |
E1189
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Successor Tubes
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706AY
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| Was used by |
Radar |
| Filament |
Vf 6.9 Volts / If 1.5 Ampere / Half indirect |
| Description |
Fixed-frequency 8-cavity magnetron requiring forced air cooling and external magnet. Coaxial connector, unstrapped rsonators. 706A-C was the first family of 10 cm magnetrons made by Western Electric, directly derived from the British E1189 carried to U.S. by the Tizard mission in August 1940.
- 11 kV at 12.5 A typical input pulses
- 25 kW output pulses.
The family included three fixed frequency factory-tuned types, A, B and C, from 3019 to 3100 MHz.
Used among the others in the transmitter section of SCR-519 precision bombing radar designed by Western Electric for use in the B-24.
Raytheon and Westinghouse second sourced the family. The unstrapped 706A to C familiy was replaced from the late 1941 by the strapped family 706AY to GY.
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| Weight |
1000 g / 35.27 oz |
| Information source |
Tube Lore (I)
-- Original-techn. papers. BSTJ, Vol.XXV, April 1946
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