Region

Central

When

Part of the National Valve Museum. Viewing by internet only

What

John donated a large box of valves to the museum in May 2007.

Exhibits

12BY7A

1A7GT

1B3GT

25Z6GT

2A6

on show

2D4B

2X2

3A3

41

43

here

442BU

46

502A

55

5Z4

6080

6A7

6AU4GTA

6AU5GT

6AU8

6D4

6D6

6DW4

6EM7

6H6GT

6K6GT

6P25

6Q7GT

75C1

8136

85A1

90AV

9D2

CV0188

DAC32

HL22

PY33

QS150/15

R18

R19

U339

VR105-30

VR150/30

VR54

VU71