6 x Z573M=Z5730M /Z570M Z574M/ NIXIE TUBES for clock RFT Used Tested Germany
Lot of 6 Z573M nixie tube without red filter. Z570M / Z5700M / Z5730M / Z574M / Z5740M. Z570M & Z5700M hasn't decimal points. Z573M & Z5730M has right decimal point. Z574M & Z5740M has left decimal point.
Z570M Z573M Z574M are red. Z5700M Z5730M Z5740M are clear. All the same tubes from one device.