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Jacob Roschy, Germany - Tube collection

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ID = 175
Photo Jacob Roschy

Below you find a part of the tube collection Jacob Roschy.

Röhren
Result: 361 to 390 from 1295
1 .. 8 9 10 11 12 13 14 15 16 17 18 .. 20 .. 30 .. 40 .. 44
 
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Excerpt from the tube collection of Jacob Roschy. These images (tube photos) were uploaded to the respective tubes or valves by Jacob Roschy.

click to access the tube page
1006
Common type USA tube/semicond. USA
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1701
Philips; Eindhoven (tubes in... NL
click to access the tube page
AZ1 1935
Common type Europe tube/semi... EU
click to access the tube page
AZ2 1936
Philips Italy; Milano (MI) I
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AZ4 1938
Philips; Eindhoven (tubes in... NL
click to access the tube page
AZ11 1938
Common type Europe tube/semi... EU
click to access the tube page
AZ12 1938
Telefunken Deutschland (TFK)... D
click to access the tube page
AZ21 1941
Philips; Eindhoven (tubes in... NL
click to access the tube page
AZ21_9pin
Philips; Eindhoven (tubes in... NL
click to access the tube page
AZ31 1938
Mullard Radio Valve Co. Ltd.; GB
click to access the tube page
AZ41 1947
Common type Europe tube/semi... EU
click to access the tube page
ВО-188
Common type USSR (SU) tube/s... SU
EZ1 mit Kupferkatode. Man versprach sich von Kupferkatoden bessere Wärmeleitfähigkeit und geringere Wärmeabstrahlung. Allerdings verdampft Kupfer bei der normalen Betriebstemperatur der Katode von 800 °C schon stark und schlägt sich auf Isolatoren und Innenwand des Kolbens nieder, was man an dem grünlichen Belag auf dem Kolben deutlich erkennen kann. Daher verschwanden Röhren mit Kupferkatode sehr schnell wieder vom Markt. #### EZ1 with copper cathode. Better thermal conductivity and lower heat radiation was expected by the use of copper cathodes. However, copper evaporates strongly at the usual cathode operating temperatures of 800 ° C and deposits on the insulators and the inner surface of the bulb, which can clearly be seen in the greenish discolour, so tubes with copper cathode disappeared very quickly from the market.
EZ1 1934
Common type Europe tube/semi... EU
click to access the tube page
EZ2 1936
Philips; Eindhoven (tubes in... NL
click to access the tube page
EZ3 1936
Philips; Eindhoven (tubes in... NL
click to access the tube page
EZ4 1936
Philips; Eindhoven (tubes in... NL
click to access the tube page
EZ11 1938
Common type Europe tube/semi... EU
click to access the tube page
EZ40 1948
Common type Europe tube/semi... EU
click to access the tube page
EZ40A 1951
Common type France tube/semi... F
click to access the tube page
EZ41 1948
Common type Europe tube/semi... EU
click to access the tube page
EZ80 1952
Common type Europe tube/semi... EU
click to access the tube page
EZ81
Common type Worldwide tube/s... ZZ
Mit 6X4- Aufbau für 70 mA
EZ90 1951
Common type Europe tube/semi... EU
click to access the tube page
EZ91
click to access the tube page
EZ113
Telefunken Deutschland (TFK)... D
click to access the tube page
FZ1 1934
Common type Europe tube/semi... EU
click to access the tube page
G1064
Valvo GmbH, Radioröhrenfabri... D
click to access the tube page
GZ32
Common type Europe tube/semi... EU
click to access the tube page
GZ40 1948
Common type France tube/semi... F
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GZ41 1951
Common type France tube/semi... F
Result: 361 to 390 from 1295
1 .. 8 9 10 11 12 13 14 15 16 17 18 .. 20 .. 30 .. 40 .. 44
 

Tube collector page of valve collector Jacob Roschy as «own HP at RMorg»
As a member of Radiomuseum.org Jacob Roschy 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.

Jacob Roschy started his/her tube collection (valve collection) here on 26.Oct.2004. [index-en]

  
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