Antique radios, Old Time Radios
BD-203
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Country:
United States of America (USA)
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| Identical to |
BD-203
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| Predecessor Tubes |
6700
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| Base |
SPECIAL TUBEBASE in general
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| Filament |
Vf 6.3 Volts / Indirect |
| Description |
Beam Switching Tube with a 26 pin base. 1MHz counting frequency. This was the slim version of the unshielded external-magnet 6700. The glass bulb was shrinked above the base, just before entering into the magnet.
Operating principle of trochotron.
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BD-203: Manufacturer's Literature
Emilio Ciardiello
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line up.
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