The AD101 from Telefunken is an audio output triode with an anode dissipation of 12 Watts.
The Wehrmacht and BAL716 identification of a 1933-1945 German government valve. The BAL is the acceptance office.The gettering obscures the internal construction.The classic envelope is 45 mm in diameter and, excluding the B5 base pins, is 113 mm tall.Reference: Data-sheet. Type AD101 was first introduced in 1944. See also 1944 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 |  a | g1 | h | h | k |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vg | mAa | gm | 
| 4.0 | 1.6 | 300 | -1 | 60 | 6.0 |
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Updated March 14, 2023.
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