Extrait de la collection de lampes / semi-conducteurs de Robert Gillespie. Ces images ont été chargées sur la page d'une lampe / semi-conducteur par Robert Gillespie.
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| L45 |
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| CeCo (tubes), C.E. Mfg. Co. ... |
USA |
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| L50 |
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| CeCo (tubes), C.E. Mfg. Co. ... |
USA |
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| L210 |
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| Common type Great Britain tu... |
GB |
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| L409_Zenith |
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| Zenith (Tubes); Monza |
I |
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| L413S |
1930 |
| Valvo GmbH, Radioröhrenfabri... |
D |
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| L415_Tungsram |
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| Tungsram; Budapest (see also... |
H |
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| LB-199 |
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| Lord Baltimore Laboratories;... |
USA |
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| LB199_UX |
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| Lord Baltimore Laboratories;... |
USA |
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| LD120 |
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| Telefunken Deutschland (TFK)... |
D |
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| LE219 |
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| Huth, Signalbau AG, Dr. Eric... |
D |
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| LE244 |
1924 |
| Huth, Signalbau AG, Dr. Eric... |
D |
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| LE251 |
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| Huth, Signalbau AG, Dr. Eric... |
D |
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| LE344 |
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| Huth, Signalbau AG, Dr. Eric... |
D |
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| LS2_MO |
1925 |
| Marconi-Osram - (Valves/Tube... |
GB |
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| LS3_MO |
1923 |
| Marconi-Osram - (Valves/Tube... |
GB |
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| LT3 |
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| Marconi-Osram - (Valves/Tube... |
GB |
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| M.D.3A |
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| Mullard Radio Valve Co. Ltd.; |
GB |
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| M26 |
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| CeCo (tubes), C.E. Mfg. Co. ... |
USA |
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| M26_metal-glass |
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| Gold Seal Electrical Co., In... |
USA |
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| M27 |
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| Gold Seal Electrical Co., In... |
USA |
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| M41LF |
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| Cossor, A.C.; London |
GB |
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| M4205E |
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| Standard Telephones and Cabl... |
GB |
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| Mc |
1917 |
| Siemens (& Halske, -Schucker... |
D |
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| MicroMetal |
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| Métal; France (tubes) |
F |
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| Microtriode |
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| Grammont (Radiofotos, Fotos)... |
F |
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| Moorhead_Special |
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| Moorhead Laboratories (Pacif... |
USA |
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| MR805 |
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| EMKO A/S; København |
DK |
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| MU6 |
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| Daven Radio Co. ; Newark (NJ) |
USA |
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| MU20 |
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| Daven Radio Co. ; Newark (NJ) |
USA |
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