Extrait de la collection de lampes / semi-conducteurs de Roy Johnson. Ces images ont été chargées sur la page d'une lampe / semi-conducteur par Roy Johnson.
| 830B |
|
| Common type USA tube/semicond. |
USA |
|
| 410HF |
|
| Cossor, A.C.; London |
GB |
|
| 402P |
|
| Cossor, A.C.; London |
GB |
|
| 220PA |
|
| Cossor, A.C.; London |
GB |
|
| 210HL_Cossor |
1926 |
| Cossor, A.C.; London |
GB |
|
| 104V |
|
| Mullard Radio Valve Co. Ltd.; |
GB |
|
| 41MP |
|
| Cossor, A.C.; London |
GB |
|
| 10E/7738 |
|
| Common type Great Britain tu... |
GB |
|
|
| 6AQ4 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 3A/110A |
|
| Standard Telephones and Cabl... |
AUS |
|
| XP1.5 |
|
| Hivac Ltd.; Harrow-on-the-Hill |
GB |
|
| XL1.5 |
|
| Hivac Ltd.; Harrow-on-the-Hill |
GB |
|
| XH1.5 |
|
| Hivac Ltd.; Harrow-on-the-Hill |
GB |
|
| VT68_GPO |
|
| Marconi-Osram - (Valves/Tube... |
GB |
|
| VT50 |
|
| Common type Great Britain tu... |
GB |
|
| VR505 |
|
| Common type Great Britain tu... |
GB |
|
| VR137 |
|
| Common type Great Britain tu... |
GB |
|
| VR135 |
|
| Common type Great Britain tu... |
GB |
|
| VR122 |
|
| Common type Great Britain tu... |
GB |
|
| VR38 |
|
| Marconi-Osram - (Valves/Tube... |
GB |
|
| VR22 |
|
| Marconi-Osram - (Valves/Tube... |
GB |
|
| VR21 |
|
| Common type Great Britain tu... |
GB |
|
| V503 |
|
| Mazda = Valve (Tube) brand G... |
GB |
|
| UY227 |
1927 |
| Common type USA tube/semicond. |
USA |
|
| StentorTwo |
|
| Cossor, A.C.; London |
GB |
|
| SP230 |
|
| Tungsram; Budapest (see also... |
H |
|
| R5V |
1925 |
| MO Valve Co. Ltd.; GB |
GB |
|
| R_Osram |
|
| Common type Great Britain tu... |
GB |
|
| PX25 |
|
| Marconi-Osram - (Valves/Tube... |
GB |
|
