The top unit is supposedly named 3001a, check Radiomuseum and also a thread at the UKVRRR forum where dodgy driver transistors where mentioned as a common Nixie problem.
/Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/f4fd6cdd-54c6-4c2c-a415-704f6e562f7b%40googlegroups.com.
