Yes, thank you I have seen it. I am currently trying to make a schematic of the power supply that is on the clock that I have. I have no voltages higher than about 125 ish in the clock. The 15Volt for the chip is derived from a zener on a 55 Volt line. Also Heath uses NPN transistors , and my unit is using PNP's. I am going to look and see if I have any other panaplex clock diagrams .......
Howard On Sunday, January 17, 2021 at 7:23:39 PM UTC-6 J Forbes wrote: > did you see this? > > http://www.decadecounter.com/vta/pdf/gc1092d_schematic.pdf > > > On Sunday, January 17, 2021 at 3:35:14 PM UTC-7 N9KTW wrote: > >> Well I found another clock to work on, using SP352 displays........ It is >> marked DIGITAL CONCEPTS CORP, EC102 electronic calendar clock. >> >> It uses 3 SP352's for a 6 digit display. A MOSTEK 5017BA chip to run >> things. >> >> The display doesnt light up, at all. In attempting to check voltages, I >> cannot find any above about 125 (this seems VERY low for the panaplex >> displays) I have been told that this is similar to a HEATHKIT GC1092d. >> >> Anyone got any ideas, maybe a schematic for this guy????? >> >> T I A >> >> de Howard, N9KTW >> > -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5eaab82a-08c4-4a39-a4b3-070f311a105an%40googlegroups.com.
