Mark - Keysight MAY have that spare VFD still in stock (German office supposedly had a few). Several HP-34401A DVM owners have used that Chinese source for replacement. The display model being sold appears to be: SAMSUNG SSVD INB-12MM52T
Good luck ! greg > I looked closely at the display and can see unused annunciators for > frequency, us, period, etc. > So the display is the same as used in at least one of their frequency > counters. > The display is a 12 character 14-segment display. > There is a possibility that a HP-34401A display might work. > Those are available from China for around $50. > - Mark Sent from iPad Air _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.