Brings back old memories..... I've cannibalized at least 3 versions of the Berkeley Universal Counter, most recently in 1980. One of them, though, had an electroluminescent panel which I thought was interesting, but it was very dim (these thing have limited lifetime).
They got scrapped for the neon bulbs, power transformer, panel switches and panel lamps, and perhaps fuses. Sorry to say the tubes had a very unpleasant ending. They went pop-pop-pop into the local storm drain. Maybe it's just me, but I still have no regrets destroying those dinosaurs. I already had a working 6-digit nixie-tube counter, so I had no use for the Berkeley units. The tube-based counter modules are quite a nightmare: No circuit-board !! Instead, its a stack of resistors and a few caps. I think they called this assembly technique "cordwood", because it resembles how one would stack a cord of firewood. Anyone who has the patience to resurrect one of those counting modules and get it working deserves a lifetime achievement award. -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/1405fdb6-e49c-464f-9e9d-67c34ceca818%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
