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Roy Johnson, Great Britain (UK) - Tube collection

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ID = 5944
Photo Roy Johnson

Below you find a part of the tube collection Roy Johnson.

Collector of Valves and old Scientific, Test and Radio Equipment. Interests are mostly in British valves.
Result: 181 to 210 from 415
1 2 3 4 5 6 7 8 9 10 11 12 14
 
Sort order:  [ Name | Maker | Year | Type | Country ]

Excerpt from the tube collection of Roy Johnson. These images (tube photos) were uploaded to the respective tubes or valves by Roy Johnson.

click to access the tube page
CV2179
Mazda = Valve (Tube) brand G... GB
click to access the tube page
CV1189
Mazda = Valve (Tube) brand G... GB
click to access the tube page
AC5/Pen
Mazda = Valve (Tube) brand G... GB
Unmetallised version
AC2HL
Mazda = Valve (Tube) brand G... GB
click to access the tube page
AC/VP1
Mazda = Valve (Tube) brand G... GB
click to access the tube page
QMR201
Marconi's Wireless Telegraph... GB
This is a Marconiphone branded valve/tube. Made by the General Electric Co Ltd of England as Osram.
N147
Marconi's Wireless Telegraph... GB
click to access the tube page
CV408
Marconi's Wireless Telegraph... GB
click to access the tube page
Z8191
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
X30
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
W149
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
W147
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
VX302
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
VT115
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
VT68_GPO
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
VT60A
Marconi-Osram - (Valves/Tube... GB
Metallising removed
VS24
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
VR38
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
VR22
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
VDSB 1933
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
U149
Marconi-Osram - (Valves/Tube... GB
Some various shapes of the PX25
PX25
Marconi-Osram - (Valves/Tube... GB
Some early PX4 had an angled structure. Not easily seen in almost totally silvered balloon envelopes. The Post office claimed that this stucture gave a longer life in telephone repeater applications.
PX4 1929
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
PT25H
Marconi-Osram - (Valves/Tube... GB
Showing a couple of variants. The VT104/PT15 was widely used in military transmitters and is electrically and physically quite rugged despite the large envelope.
PT15
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
NGT2
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
MU14
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
MS4B
Marconi-Osram - (Valves/Tube... GB
The Catkin Version - I tested it in 1957 and it still fine!
MH4Cat
Marconi-Osram - (Valves/Tube... GB
click to access the tube page
LP2
Marconi-Osram - (Valves/Tube... GB
Result: 181 to 210 from 415
1 2 3 4 5 6 7 8 9 10 11 12 14
 

Tube collector page of valve collector Roy Johnson as «own HP at RMorg»
As a member of Radiomuseum.org Roy Johnson displays items in his/her tube collection. Tubes are called valves in British oriented countries.
Valve and tube collectors as well as radio collectors are invited to join Radiomuseum.org. Every member can display separate collections of tubes, radios etc.

Roy Johnson started his/her tube collection (valve collection) here on 13.Oct.2006. [index-en]

  
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