Excerpt from the tube collection of Rudolf Osterkamp. These images (tube photos) were uploaded to the respective tubes or valves by Rudolf Osterkamp.
UM11 |
1940 |
Common type Europe tube/semi... |
EU |
|
Ultra |
|
Radioröhren-Laboratorium-Gmb... |
D |
|
UL1402 |
|
Unitra CEMI, Naukowo-Produkc... |
PL |
|
UL2_Valvo |
1948 |
Valvo GmbH, Radioröhrenfabri... |
D |
|
UGN3020 |
|
Common type USA tube/semicond. |
USA |
|
UGB3132AD |
|
Common type USA tube/semicond. |
USA |
|
UF5408 |
|
Common type Worldwide tube/s... |
ZZ |
|
UF-2 |
|
Common type Japan tube/semic... |
J |
|
|
UDN2982 |
|
Common type USA tube/semicond. |
USA |
|
UCL11 |
1939 |
Common type Europe tube/semi... |
EU |
|
UCH71 |
1950 |
Lorenz; Berlin, Zuffenhausen... |
D |
|
UCH11 |
1939 |
Common type Europe tube/semi... |
EU |
|
UC3842 |
|
Common type Worldwide tube/s... |
ZZ |
|
UC3524 |
|
Common type USA tube/semicond. |
USA |
|
UBF11 |
1939 |
Common type Europe tube/semi... |
EU |
|
UBC81 |
1956 |
Common type Europe tube/semi... |
EU |
|
|
U920/6_p8 |
|
Osram GmbH KG; Berlin |
D |
|
U220 |
1924 |
Radioröhren-Laboratorium-Gmb... |
D |
|
U10 |
1930 |
MO Valve Co. Ltd.; GB |
GB |
|
U9A993059X |
|
Fairchild Semiconductor Inc.... |
USA |
|
U6_Ultremit |
|
Kremenezky, Johann (Sator); ... |
A |
|
U6A900959X |
|
ATES; L’Aquila, Milano, Napo... |
I |
|
U4E8 |
|
Pedersen, M.P. (earlier: Sko... |
DK |
|
|
Type4V |
|
Noiseless, Daalen, Radio Tec... |
NL |
|
TXC02F40 |
|
Siemens (& Halske, -Schucker... |
D |
|
TXC01A40 |
|
Siemens (& Halske, -Schucker... |
D |
|
|
Rudolf Osterkamp started his/her tube collection (valve collection) here on 04.Aug.2008.
[index-en]