The E2188 is an experimental development valve from M-OV. The envelope is opaque and the inner structure is hard to determine. The pin connections given below have been searched for and nothing matches.![](../pics/acl0022a.jpg)
The rod on the right, if it is a connection, is attached above the top mica.The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins is 60 mm tall.Reference: Observation. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ![](../static/key.gif) ? | g1 | k | h | h | ? | g3 | nc | a |
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Updated January 06, 2022.
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