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Valve Gallery - Diodes
(1)
Valves: D42, DD4, 2D4A, 2D4B.
 
| Shown above is a Marconi Osram D42 diode. 4v
heater, B4 base and height of 83mm. Just a single diode contained
within envelope. |
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Shown above is a Tungsram DD4. Two diodes
contained within metallised envelope. B5 base. Gold circular
legend can just be seen at 4 and 5 cm mark. 4v heater, height of
100mm.. |
 
| Shown above is an Mullard 2D4A. 4v heater,
B5 base. Contains two diodes. Height of 111mm |
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Shown above is a Mullard 2D4B. 4v heater,
B7 base. Contains two diodes. Height of 95mm. |
Continue to the next Diode
Valves gallery page
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