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DDL4Sensibly equivalent¶ to:See also:
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The DDL4 is a double signal diode that dates from 1937. The diodes are indirectly heated and share a common cathode.See also the 1934 220DD battery double diode from Cossor.The balloon envelope is 29 mm in diameter and, excluding the B5 base pins, is 74 mm tall.References: 1043. Type DDL4 was first introduced in 1937. See also 1937 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 |  a(1) | a(2) | h | h | k |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | mAa |
| 4.0 | 0.75 | 20 | 10.0 |
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Updated April 04, 2015.
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