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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: 331 to 360 from 1295
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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
EQ80 1950
Common type Europe tube/semi... EU
click to access the tube page
EY82
Common type Europe tube/semi... EU
click to access the tube page
EY91
Common type Europe tube/semi... EU
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
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
EZ41 1948
Common type Europe tube/semi... EU
click to access the tube page
EZ80 1952
Common type Europe tube/semi... EU
Mit 6X4- Aufbau für 70 mA
EZ90 1951
Common type Europe tube/semi... EU
click to access the tube page
FZ1 1934
Common type Europe tube/semi... EU
click to access the tube page
G354
Common type Europe tube/semi... EU
click to access the tube page
GN4
Common type Europe tube/semi... EU
click to access the tube page
GZ32
Common type Europe tube/semi... EU
click to access the tube page
HABC80 1952
Common type Europe tube/semi... EU
click to access the tube page
HCC85
Common type Europe tube/semi... EU
click to access the tube page
HL90 1950
Common type Europe tube/semi... EU
click to access the tube page
KB1 1935
Common type Europe tube/semi... EU
click to access the tube page
KB2 1936
Common type Europe tube/semi... EU
click to access the tube page
KBC1 1934
Common type Europe tube/semi... EU
click to access the tube page
KC1_4pin 1934
Common type Europe tube/semi... EU
click to access the tube page
KC1_p8 1936
Common type Europe tube/semi... EU
click to access the tube page
KC3 1936
Common type Europe tube/semi... EU
click to access the tube page
KCH1 1939
Common type Europe tube/semi... EU
click to access the tube page
KDD1 1936
Common type Europe tube/semi... EU
Mit Clip-Kappe statt Schraubkappe lt. Datenbuch
KF1
Common type Europe tube/semi... EU
click to access the tube page
KF2 1934
Common type Europe tube/semi... EU
click to access the tube page
KF3 1936
Common type Europe tube/semi... EU
click to access the tube page
KF8 1935
Common type Europe tube/semi... EU
click to access the tube page
KK2 1935
Common type Europe tube/semi... EU
click to access the tube page
KL1_5pin 1934
Common type Europe tube/semi... EU
Result: 331 to 360 from 1295
1 .. 7 8 9 10 11 12 13 14 15 16 17 .. 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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