NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN 41609 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| DIN 44401 | 1971-05 | Letter symbols in data sheets for electronic tubes More |
| IEC 60067 | 1966 | Dimension of electronic tubes and valves More |
| IEC 60135 | 1961 | Numbering of electrodes and designation of units in electronic tubes and valves More |
| IEC 60236 | 1974 | Methods for the designation of electrostatic deflecting electrodes of cathode-ray tubes More |
