Excerpt from the tube collection of Peter Pfeiffer. These images (tube photos) were uploaded to the respective tubes or valves by Peter Pfeiffer.
20P3 |
|
Mazda = Valve (Tube) brand G... |
GB |
|
20P4 |
|
Mazda = Valve (Tube) brand G... |
GB |
|
21B6 |
|
Mazda (tubes), Mazda-Belvu, ... |
F |
|
|
22 |
1927 |
Common type USA tube/semicond. |
USA |
|
23N50 |
|
Common type China (PRC) tube... |
PRC |
|
24 |
1929 |
Common type USA tube/semicond. |
USA |
|
24A |
1929 |
Common type USA tube/semicond. |
USA |
|
24B9 |
|
Standard Telephones and Cabl... |
GB |
|
24C02 |
|
Thomson (marque), Thomson-Ho... |
F |
|
24C04 |
|
Thomson (marque), Thomson-Ho... |
F |
|
24LC16 |
|
Common type Worldwide tube/s... |
ZZ |
|
|
24T12 |
|
Standard Telephones and Cabl... |
GB |
|
25-75V0,2A |
|
Osram GmbH KG; Berlin |
D |
|
25A6G |
|
Common type USA tube/semicond. |
USA |
|
|
25L6G |
1937 |
Common type USA tube/semicond. |
USA |
|
25L6GT |
1938 |
Common type USA tube/semicond. |
USA |
|
25Z5 |
1933 |
Common type Worldwide tube/s... |
ZZ |
|
25Z6 |
1936 |
Common type USA tube/semicond. |
USA |
|
25Z6G |
|
Common type USA tube/semicond. |
USA |
|
25Z6GT |
|
Common type USA tube/semicond. |
USA |
|
25Z6GT/G |
|
Common type USA tube/semicond. |
USA |
|
26 |
1927 |
Common type USA tube/semicond. |
USA |
|
26-4A |
|
Amperite Co., Inc.; Union Ci... |
USA |
|
26A6 |
|
Common type USA tube/semicond. |
USA |
|
26C6 |
|
Common type USA tube/semicond. |
USA |
|
26MB120A |
|
Common type USA tube/semicond. |
USA |
|
26NO90 |
|
Amperite Co., Inc.; Union Ci... |
USA |
|
Peter Pfeiffer started his/her tube collection (valve collection) here on 07.May.2020.
[index-en]