A measurement of ripple levels and frequency would help a lot in diagnosing what's happening. Also, electrolytics have a maximum rated current, and the higher the one that passes through them, the higher the internal temperature, and in consequence a shorter life. I don't know if multilayer ceramic capacitors have this value specified, but it will affect them for sure.
On Saturday, April 6, 2019 at 9:15:57 PM UTC-3, MichaelB wrote: > > This makes 4 times now this clock has failed over the past 10 years or so. > This is a stock clock with IN-18's. I have another set of these electronics > that has never failed, but then again, I had changed the tube board to > accommodate the Z566M tube. Different current demands? It has worked like a > charm for years now. The failure with the IN-8 clock this time was a leaky > C6. In the past the inductor has failed, but usually its one of the > electrolytics in the Pwr supply stage. It's become kind of a ritual where > every 2-3 years I have to pull the clock apart and play detective and > figure out what's wrong after its starts blowing fuses. Kind of fun now, > actually! > -- 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/d0028745-62fa-4f40-ac33-e045d4a58ac6%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
