Antique radios, Old Time Radios
YD1400
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Country:
Great Britain (UK)
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| Identical to |
YD1400
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| Similar
Tubes |
Other base and data slightly different:
A2521
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| Base |
Noval, 9 pin miniature (USA pico-9) B9A
Wires only.
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| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
Va <500, Pa <3.5W; Flying lead, special quality version of the A2521
This was the last of the classic MOV designs. They were used as a cascode pair as the front end of the UK Clansman army radio which dates from the 1960s. Although transistors could have met the noise figures they were not robust enough to operate reliably in proximity to the transmitter. The YD1400 was developed for this equipment and proved a very reliable device being manufactured until 1986.
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| Information source |
- - Manufacturers Literature
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YD1400: AH eigene Sammlung
Alexander Hofer
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Just Qvigstad
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Collection of
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