E2597 triode / pentode
|This valve measures 54x19mm overall and has a B9A base
These valves are marked experimental only.
|7||Pentode cathode + suppressor grid|
|8||Pentode screen grid|
|9||Pentode control grid|
There are four of these valves, serial numbers 18, 19, 31 and 32.
This file was last modified14:57:26, Tuesday September 02, 2014