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.![](../pics/acn0081a.jpg)
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 | ![](../static/key.gif) h | a | g2 | g3 | k | h | g1 |
|
|
Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | μ | ![](../static/pdflogo.gif)
| 6.3 | 0.4 | 250 | 250 | -31 | 32 | 5.5 | 2,600 | 1.8 | 4.7 |
|
Updated August 23, 2022.
|
|