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E2597 triode / pentode

Size
This valve measures 54x19mm overall and has a B9A base

These valves are marked experimental only.

PinFunction
1Triode anode
2Triode grid
3Triode cathode
4Heater
5Heater
6Pentode anode
7Pentode cathode + suppressor grid
8Pentode screen grid
9Pentode control grid

There are four of these valves, serial numbers 18, 19, 31 and 32.

Set of 4
E2597
E2597

This file was last modified23:14:07, Friday November 02, 2012