Thank you, that signal is present in all its glory. I got a circuit diagram and could see that it was rectifying AC from the transformer so that was the first place I looked. The signal was good. Given that the clock chip is multiplexing the displays nicely I'd be surprised if it had failed. I've also checked that all the various switch contacts are good and they do seem to be. I don't think that replacement clock ICs are going to be that easy to locate! Richard
On Tue, 10 Nov 2020, 16:08 Bill Stanley, <billstanley3...@gmail.com> wrote: > A possible cause of the failure to count is the 60Hz signal the clock uses > for a time base. Look at pin 23 of the MK5017 with a scope for a half wave > 60 (or 50) Hz signal. > > -Bill- > > > On Tuesday, November 10, 2020 at 7:10:26 AM UTC-8 Richard Scales wrote: > >> Thank you. I have a Heathkit clock that needs some assistance. It does >> everything it should do apart from increment the time. The clock chip is >> driving the displays so I'm thinking it's OK but it just won't count time. >> I wasn't thinking of offering a kit but if anyone has a set of SP-101's >> then I can help out with Pcb's for this version as well as another one that >> I hope to have ready soon. >> Richard >> >> >> On Tue, 10 Nov 2020, 14:11 martin martin, <mcve...@gmail.com> wrote: >> >>> Your clock looks great! I'm currently fixing this 1970s Heathkit with >>> an overheating power transformer. >>> >>> And yes! I would be interested in a kit >>> >>> >>> >>> ~ >>> *mcve...@gmail.com* >>> >>> >>> On Tue, Nov 10, 2020 at 6:04 AM Richard Scales <scal...@gmail.com> >>> wrote: >>> >>>> I could make plans available, or all hinges on having the displays. >>>> The rest of just smart sockets albeit ones I made work for these 7 >>>> segment displays. >>>> I have another design which is a direct drive approach and is therefore >>>> much simpler in terms of hardware whilst the software has to do a lot more >>>> of the heavy lifting. >>>> I'll show that when ready. I'm just waiting on updated pcb's to arrive. >>>> Richard >>>> >>>> On Tue, 10 Nov 2020, 13:58 Michail Wilson, <m...@michail.com> wrote: >>>> >>>>> Love it. >>>>> >>>>> >>>>> >>>>> Plans, Open source, only one or making a kit available? >>>>> >>>>> >>>>> >>>>> Michail Wilson >>>>> >>>>> 206-920-6312 <(206)%20920-6312> >>>>> >>>>> >>>>> >>>>> *From:* neoni...@googlegroups.com <neoni...@googlegroups.com> *On >>>>> Behalf Of *Richard Scales >>>>> *Sent:* Tuesday, November 10, 2020 1:39 AM >>>>> *To:* neonixie-l <neoni...@googlegroups.com> >>>>> *Subject:* [neonixie-l] SP-101 Clock, finshed at last! >>>>> >>>>> >>>>> >>>>> I've finally completed this: Six SP-101 panaplex displays being driven >>>>> by 'smart sockets' which are getting their instructions from a Teensy >>>>> Micro. >>>>> >>>>> >>>>> >>>>> A Wemos provides NTP sync, sensor reading (temperature and pressure) , >>>>> Web scraping (local wind speed and direction) and random words. >>>>> >>>>> >>>>> >>>>> It does the best it can with only 7 segments. Also includes microwave >>>>> motion detection so the thing is only displaying data when there is >>>>> someone >>>>> there to see it! >>>>> >>>>> >>>>> >>>>> I got green pcb's so the case is especially tinted to match. >>>>> >>>>> >>>>> >>>>> - Richard >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> 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. >>>>> To view this discussion on the web, visit >>>>> https://groups.google.com/d/msgid/neonixie-l/4eb4cac2-d704-4464-8789-f13d1491b881o%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/neonixie-l/4eb4cac2-d704-4464-8789-f13d1491b881o%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>>> -- >>>>> You received this message because you are subscribed to a topic in the >>>>> Google Groups "neonixie-l" group. >>>>> To unsubscribe from this topic, visit >>>>> https://groups.google.com/d/topic/neonixie-l/l9hzbmAmbnY/unsubscribe. >>>>> To unsubscribe from this group and all its topics, send an email to >>>>> neonixie-l+...@googlegroups.com. >>>>> To view this discussion on the web, visit >>>>> https://groups.google.com/d/msgid/neonixie-l/MW2PR0102MB3435BA7FADF3ECBE89602C1482E90%40MW2PR0102MB3435.prod.exchangelabs.com >>>>> <https://groups.google.com/d/msgid/neonixie-l/MW2PR0102MB3435BA7FADF3ECBE89602C1482E90%40MW2PR0102MB3435.prod.exchangelabs.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >>>> 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. >>>> To view this discussion on the web, visit >>>> https://groups.google.com/d/msgid/neonixie-l/CA%2B9r3s_XAK3Ae94SfkOM_5woKdpGyoKkuX%2B0px5BUs4eYvH8fw%40mail.gmail.com >>>> <https://groups.google.com/d/msgid/neonixie-l/CA%2B9r3s_XAK3Ae94SfkOM_5woKdpGyoKkuX%2B0px5BUs4eYvH8fw%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "neonixie-l" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/neonixie-l/l9hzbmAmbnY/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> neonixie-l+...@googlegroups.com. >>> >> To view this discussion on the web, visit >>> https://groups.google.com/d/msgid/neonixie-l/CAKYv7NSU6dMJzM6zbQkUo6EVpnxfuPTQ1kdZo%3D3oWjEmsTmYkg%40mail.gmail.com >>> <https://groups.google.com/d/msgid/neonixie-l/CAKYv7NSU6dMJzM6zbQkUo6EVpnxfuPTQ1kdZo%3D3oWjEmsTmYkg%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to a topic in the > Google Groups "neonixie-l" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/neonixie-l/l9hzbmAmbnY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > neonixie-l+unsubscr...@googlegroups.com. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/0c5a7be4-5cdd-486a-b2c8-f98459e22eben%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/0c5a7be4-5cdd-486a-b2c8-f98459e22eben%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CA%2B9r3s_p1VfGQCRPUNDbi6GtdZEMPSy%3Di0GQ2ssRqUjRdWVzZQ%40mail.gmail.com.
