The American Type 80 is an audio output pentode designed for use as a pentode or triode. As a Class A triode amplifier the single ended output is 900 mW, whereas as a pentode the output is given as 3.4 Watts.
The UX6 base pins. Thanks to Mark Mallison for sending the images.The classic envelope is mm in diameter and, excluding the UX6 base pins, is mm tall.Reference: Data-sheet. Type 89 was first introduced in 1936. See also 1936 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | tc |  h | a | g2 | g3 | k | h | g1 |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | μ | 
| 6.3 | 0.4 | 250 | 250 | -31 | 32 | 5.5 | 2,600 | 1.8 | 4.7 |
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Updated August 23, 2022.
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