Antique radios, Old Time Radios
BX4000
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Country:
United States of America (USA)
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| Identical to |
BX4000
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| Similar
Tubes |
Different maximum ratings:
BX4001
Other characteristic (electr. data):
BX2000
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| Filament |
Vf 6.3 Volts / If 0.15 Ampere / Indirect |
| Description |
'Beam-X Switch' family from Burroughs. To reduce the size of the previous beam switch tubes, Burroughs moved the magnetic source inside the electrode structure; 10 small magnets were mounted into the tube, one for each counting position. The Beam-X family had no pin available for zero reset feature.
Glass envelope with 26 pin base, external magnetic shield. BX4000 is the low-voltage version of BX2000; 1MHz counting speed, 30V target voltage, 1mA target current.
Operating principle of trochotron.
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BX4000: Manufacturer's Literature
Emilio Ciardiello
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Collection of
Collection of a member from E |
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