Excerpt from the tube collection of Rudolf Osterkamp. These images (tube photos) were uploaded to the respective tubes or valves by Rudolf Osterkamp.
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B25/20-4,5 |
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Siemens (& Halske, -Schucker... |
D |
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B25/20-3,4 |
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Siemens (& Halske, -Schucker... |
D |
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B25/20-3 |
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Siemens (& Halske, -Schucker... |
D |
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B25/20-1,5 |
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Siemens (& Halske, -Schucker... |
D |
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B25/20-1 |
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Schaub und Schaub-Lorenz |
D |
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|
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B20/15-0.2 |
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Siemens (& Halske, -Schucker... |
D |
|
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133R_Fleming |
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Ediswan, Siemens Edison Swan... |
GB |
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6Д3Д |
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Common type USSR (SU) tube/s... |
SU |
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6D1 |
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Mazda = Valve (Tube) brand G... |
GB |
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VU33 |
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Common type Great Britain tu... |
GB |
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VR92 |
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Common type Great Britain tu... |
GB |
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D418 |
1934 |
Tungsram; Budapest (see also... |
H |
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D1_Mazda_GB |
1937 ? |
Mazda = Valve (Tube) brand G... |
GB |
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CV1092 |
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Common type Great Britain tu... |
GB |
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40512 |
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RCA (RCA Victor Co. Inc.); N... |
USA |
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16157 |
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RCA (RCA Victor Co. Inc.); N... |
USA |
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16091 |
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RCA (RCA Victor Co. Inc.); N... |
USA |
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12RCM60 |
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International Rectifier; Los... |
USA |
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5P2M |
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NEC Corporation, Nippon Elec... |
J |
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2N6507 |
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Common type USA tube/semicond. |
USA |
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2N6405 |
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Motorola Inc. (ex Galvin Mfg... |
USA |
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2N6027 |
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Common type USA tube/semicond. |
USA |
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2N4444 |
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Motorola Inc. (ex Galvin Mfg... |
USA |
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2N4443 |
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Motorola Inc. (ex Galvin Mfg... |
USA |
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2N4442 |
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Motorola Inc. (ex Galvin Mfg... |
USA |
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2N3896 |
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Common type USA tube/semicond. |
USA |
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Rudolf Osterkamp started his/her tube collection (valve collection) here on 04.Aug.2008.
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