Antique radios, Old Time Radios
6712
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Country:
United States of America (USA)
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| Identical to |
6712
= BX3000
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| Similar
Tubes |
Different maximum ratings:
6710
; BX1000
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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, no magnetic shield. 6712 is similar to 6710, with output current drive capability raised from 2.7 to 5 mA. 2 MHz counting speed.
Operating principle of trochotron.
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6712: Manufacturer's Literature
Emilio Ciardiello
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