Extrait de la collection de lampes / semi-conducteurs de Otto Frosinn. Ces images ont été chargées sur la page d'une lampe / semi-conducteur par Otto Frosinn.
| AudioTron |
1915 |
| Cunningham Inc., E.T.; Harr... |
USA |
|
| UV200 |
1920 |
| General Electric for Brand R... |
USA |
|
| RAC3 |
1920 |
| Radio Audion Company (Myers2... |
USA |
|
| ES4 |
1921 |
| Ediswan, Siemens Edison Swan... |
GB |
|
| WD11 |
1922 |
| Westinghouse for Brand RCA-R... |
USA |
|
| 216A |
1922 |
| Western Electric Company Inc... |
USA |
|
| UV199 |
1922 |
| Common type Worldwide tube/s... |
ZZ |
|
| DV1_1volt |
1923 ?? |
| DeForest-Tubes |
USA |
|
| WD12 |
1923 |
| RCA (RCA Victor Co. Inc.); N... |
USA |
|
| DV2 |
1923 |
| DeForest-Tubes |
USA |
|
| BH |
1925 |
| Raytheon Mfg. Co.; Cambridge... |
USA |
|
| DV3A |
1925 ?? |
| DeForest-Tubes |
USA |
|
| DV5 |
1925 ?? |
| DeForest-Tubes |
USA |
|
| SX201A |
1925 |
| Sylvania (Hygrade, GTE, Nilc... |
USA |
|
| 01A |
1925 |
| Common type USA tube/semicond. |
USA |
|
| UX199 |
1925 |
| General Electric for Brand R... |
USA |
|
| CX301A |
1925 |
| Cunningham Inc., E.T.; Harr... |
USA |
|
| UX201A |
1925 |
| Common type USA tube/semicond. |
USA |
|
| 201A |
1925 |
| Common type USA tube/semicond. |
USA |
|
| DL2_deForest |
1926 ?? |
| DeForest-Tubes |
USA |
|
| DL4_deForest |
1926 ?? |
| DeForest-Tubes |
USA |
|
| DL5 |
1926 ?? |
| DeForest-Tubes |
USA |
|
| RE034 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| RE074 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| RE134 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| 401_McCullough |
1926 |
| Common type USA tube/semicond. |
USA |
|
| 71A |
1926 |
| Common type USA tube/semicond. |
USA |
|
| D-01A |
1927 ?? |
| DeForest-Tubes |
USA |
|
| DL3_deForest |
1927 ?? |
| DeForest-Tubes |
USA |
|
| DL14_deForest |
1927 ?? |
| DeForest-Tubes |
USA |
|
