Excerpt from the tube collection of Rudolf Osterkamp. These images (tube photos) were uploaded to the respective tubes or valves by Rudolf Osterkamp.
ER_Moorhead |
1916 |
Moorhead Laboratories (Pacif... |
USA |
|
EVN171 |
1916 |
Telefunken Deutschland (TFK)... |
D |
|
R4C |
1919 ?? |
GEC, General Electric Co Ltd... |
GB |
|
215A |
1919 |
Western Electric Company Inc... |
USA |
|
UV216 |
1921 |
General Electric for Brand R... |
USA |
|
B-II |
1922 |
Philips; Eindhoven (tubes in... |
NL |
|
UV201A |
1922 |
General Electric for Brand R... |
USA |
|
AR23 |
1923 |
Loewe-(Opta); Deutschland |
D |
|
ARDE |
1923 |
Ediswan, Siemens Edison Swan... |
GB |
|
LE229 |
1923 |
Huth, Signalbau AG, Dr. Eric... |
D |
|
PA2_Mullard |
1923 ? |
Mullard Radio Valve Co. Ltd.; |
GB |
|
4215A |
1923 |
Standard Telephones and Cabl... |
GB |
|
DV2 |
1923 |
DeForest-Tubes |
USA |
|
A441 |
1924 |
Philips; Eindhoven (tubes in... |
NL |
|
DFA1 |
1924 |
Mullard Radio Valve Co. Ltd.; |
GB |
|
LF-ORA |
1924 ? |
Mullard Radio Valve Co. Ltd.; |
GB |
|
ONE-VOLT-ORA |
1924 |
Mullard Radio Valve Co. Ltd.; |
GB |
|
RE83 |
1924 |
Telefunken Deutschland (TFK)... |
D |
|
RE89 |
1924 |
Telefunken Deutschland (TFK)... |
D |
|
U220 |
1924 |
Radioröhren-Laboratorium-Gmb... |
D |
|
205D |
1924 |
Western Electric Company Inc... |
USA |
|
A141 |
1925 |
Philips; Eindhoven (tubes in... |
NL |
|
A409 |
1925 |
Philips; Eindhoven (tubes in... |
NL |
|
A415 |
1925 |
Philips; Eindhoven (tubes in... |
NL |
|
B403 |
1925 |
Philips; Eindhoven (tubes in... |
NL |
|
Micro-Bigril |
1925 |
La Radiotechnique (RT); Pari... |
F |
|
RE209 |
1925 |
Telefunken Deutschland (TFK)... |
D |
|
SX201A |
1925 |
Sylvania (Hygrade, GTE, Nilc... |
USA |
|
373 |
1925 |
Philips; Eindhoven (tubes in... |
NL |
|
1018 |
1925 |
Philips; Eindhoven (tubes in... |
NL |
|
Rudolf Osterkamp started his/her tube collection (valve collection) here on 04.Aug.2008.
[index-en]