Hi Morris, Yes I do, I follow you achievments with interest, where can I see pics of the E1T clock?
Your display sounds complex, a thee phase scanning yoke! Why not just have an X-Y vector display and drive that directly by the micro? I do have a mate with a vacuum chamber (actually a commercial pressure cooker with a vacuum pump) and I can get hold of some transformer varnish as well. Want to give it a go? You have to bake it afterwards to get the varnish to go off. Lot of work for a one off. In your profession I would have thought that you would have access to a lab with some sinister apparatus for preparation of "specimens" shall we say...? Tom Harris <[email protected]> On 15 July 2014 13:01, Morris Odell <[email protected]> wrote: > 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 <[email protected]> >> >> >> On 14 July 2014 19:02, Morris Odell <[email protected]> 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 [email protected]. >>> To post to this group, send email to [email protected]. >>> >>> 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 [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/b47303bf-9443-41ab-b2ef-3c3a1b165c90%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/b47303bf-9443-41ab-b2ef-3c3a1b165c90%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 [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/CAHjG12QLTXpF%2B%2BFWgLRvdiv_DprjUSjFXEqXxTD9BSGP2Sj%3D5g%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
