Excerpt from the tube collection of Rudolf Osterkamp. These images (tube photos) were uploaded to the respective tubes or valves by Rudolf Osterkamp.
25Z5 |
1933 |
Common type Worldwide tube/s... |
ZZ |
|
AF2 |
1933 |
Philips; Eindhoven (tubes in... |
NL |
|
2A3 |
1933 |
Common type USA tube/semicond. |
USA |
|
1815 |
1933 |
Philips; Eindhoven (tubes in... |
NL |
|
75 |
1933 |
Common type USA tube/semicond. |
USA |
|
53 |
1933 |
Common type USA tube/semicond. |
USA |
|
6D6 |
1933 |
Common type USA tube/semicond. |
USA |
|
REN924 |
1933 |
Telefunken Deutschland (TFK)... |
D |
|
E447 |
1933 |
Philips; Eindhoven (tubes in... |
NL |
|
E443H |
1933 |
Philips; Eindhoven (tubes in... |
NL |
|
43 |
1932 |
Common type USA tube/semicond. |
USA |
|
41 |
1932 |
Common type USA tube/semicond. |
USA |
|
1805 |
1932 |
Philips; Eindhoven (tubes in... |
NL |
|
56 |
1932 |
Common type USA tube/semicond. |
USA |
|
15 |
1932 |
Common type USA tube/semicond. |
USA |
|
RGN564 |
1932 |
Telefunken Deutschland (TFK)... |
D |
|
RENS1818 |
1932 |
Telefunken Deutschland (TFK)... |
D |
|
E453 |
1932 |
Philips; Eindhoven (tubes in... |
NL |
|
C453 |
1932 |
Philips; Eindhoven (tubes in... |
NL |
|
B262 |
1932 |
Philips; Eindhoven (tubes in... |
NL |
|
NC4a |
1931 |
Sator (brand of Tungsram for... |
H |
|
RGN4004 |
1931 |
Telefunken Deutschland (TFK)... |
D |
|
RGN2504 |
1931 |
Telefunken Deutschland (TFK)... |
D |
|
RENS1823d |
1931 |
Telefunken Deutschland (TFK)... |
D |
|
REN1822 |
1931 |
Telefunken Deutschland (TFK)... |
D |
|
B228 |
1931 |
Philips; Eindhoven (tubes in... |
NL |
|
B217 |
1931 |
Philips; Eindhoven (tubes in... |
NL |
|
U10 |
1930 |
MO Valve Co. Ltd.; GB |
GB |
|
RGN1404 |
1930 |
Telefunken Deutschland (TFK)... |
D |
|
RES664d |
1930 |
Telefunken Deutschland (TFK)... |
D |
|
Rudolf Osterkamp started his/her tube collection (valve collection) here on 04.Aug.2008.
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