Thanks all for your kind comments! The 900 Hz howl is a disappointment. There are two 900 Hz transformers in there, the HV transformer is quiet and the power tranny is not.They have a tape wound core with the windings surrounding it. I was wondering whether to try re-potting the noisy one. It would need some compound that was not too viscous so that it would run into any gaps. Unfortunately I don't have facilities for vacuum impregnation. Alternatively I could wrap it in some material and also put a layer of buffering material between it and the back chassis.
More progress reports will come as they happen! Morris On Monday, July 14, 2014 7:02:47 PM UTC+10, Morris Odell wrote: > > Hi all, > > I've got the clock displaying time now. The video shows it upside down on > the bench so it's at a few minutes past 12. That howling power transformer > is a distraction, I'll have to wrap it in some sound absorbing material > especially as I like to add Westminster chimes to my clocks :-). > > The next step is to put it all together and tidy it up! > > https://www.youtube.com/watch?v=tL3840bE9Cs > > Morris > > > > > -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/ff28b600-d5f3-4b01-86f4-00b9f39f77de%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
