Electronic valves and tubes (excl. receiver or amplifier valves and tubes, microwave tubes, photocathode tubes, cathode ray tubes, black and white or other monochrome datagraphic display tubes and colour datagraphic display tubes with a phosphor dot screen pitch of < 0,4 mm)
Receiver or amplifier valves and tubes (excl. microwave tubes, photocathode tubes and cathode ray tubes)