| (up)date
| item
| size
|
| 2003-03-30
| Display tubes for digits and signs (nixie)
| 693,754 bytes (de)
|
| 2014-02-14
| Senderöhren 1970
| 7,492,364 bytes (de)
|
| 2014-02-24
| Höchstfrequenzröhren 1967
| 7,032,983 bytes (de)
|
| 2014-03-02
| Gasentladungsröhren 1971
| 7,263,281 bytes (de)
|
| 2022-10-16
| Empfängerröhren, 1965, 234 pages.
| 50,997,106 bytes (de)
|
| 2022-10-16
| Empfängerröhren, 1966, 252 pages
| 54,651,070 bytes (de)
|
| 2022-10-16
| Spezialröhren, 1959, 212 pages.
| 30,118,890 bytes (de)
|
| 2022-10-16
| Spezialröhren, 1961, 202 pages.
| 42,234,324 bytes (de)
|
