Thanks Tom, No it's a static yoke which is 3 phase delta wound and excited with suitable waveforms generated by a micro. It's the original 900 Hz radar power tranny that's the culprit.
BTW you may remember me as the fellow who once bought a E1T chassis from you for experimentation. That ended up as a the learning experience nice 6 digit clock too! Cheers, On Monday, July 14, 2014 7:18:43 PM UTC+10, celephicus wrote: > > Very nice Morris. The last display like this I saw had a rotating yoke > with slip rings, so if yours has one the power transformer must be a real > howler. It sounds like 400Hz too. > > Can't wait to see it completed. > > > > Tom Harris <celep...@gmail.com <javascript:>> > > > On 14 July 2014 19:02, Morris Odell <vilg...@bigpond.net.au <javascript:>> > 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+...@googlegroups.com <javascript:>. >> To post to this group, send email to neoni...@googlegroups.com >> <javascript:>. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/3bdde14f-e15f-493e-842d-51dcb22c002c%40googlegroups.com >> >> <https://groups.google.com/d/msgid/neonixie-l/3bdde14f-e15f-493e-842d-51dcb22c002c%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > -- 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/b47303bf-9443-41ab-b2ef-3c3a1b165c90%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
