Oops, a typo.It is ZM1215 of course as the file name says. eric Verstuurd vanaf mijn iPhone
> Op 5 mei 2021 om 22:36 heeft Jon Jackson <[email protected]> het volgende > geschreven: > > > is this a ZM1251 or ZM1215 ?? You have conflicting info... > >> On Wed, May 5, 2021 at 2:29 PM Tom Harris <[email protected]> wrote: >> Thanks for the ideas but it was definitely static with the pulses just used >> to turn the lamps on or off. After that they would keep their state >> indefinitely. >> >> Tom Harris <[email protected]> >> >> >>> On Thu, 6 May 2021 at 01:21, gregebert <[email protected]> wrote: >>> If it was pulsed-DC, then it probably was simple multiplexing. >>> >>> I have thought about doing it with AC, which makes the driver more complex, >>> but it will make the bulbs last longer since both electrodes will be >>> illuminated (alternately, of course). Not sinusoidal AC, but square-waves. >>> If you do the math, a typical neon bulb is "on" for about 2/3 of an AC >>> cycle (on at 90V, off at 60V) so that would be my starting point for >>> multiplexing. I was thinking a 7 x 9 matrix, using 2:1 multiplexing. It's >>> more driving circuitry but it might be possible with an HV-series device >>> that can drive high and low. >>> >>>> On Wednesday, May 5, 2021 at 5:46:13 AM UTC-7 celephicus wrote: >>>> Can someone please help me out, I remember an article from some scanned >>>> book from the 60s where a set of neon lamps were connected in a matrix >>>> with clever biasing and pulses on the row & column could toggle an >>>> individual lamp. I thought it was the GE glow lamp manual but it seems >>>> not. >>> >>> -- >>> 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/3fbf8723-0461-443e-8b97-e4c97e1417can%40googlegroups.com. >> >> -- >> 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/CAHjG12SsjFL%3DKVx8OAnCBBHfi__-MAQUh5EyfRKkU88q%3DDBcVg%40mail.gmail.com. > > -- > 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/CAC%3DcyqduE0otsTquZszcQrpZaPL0YZX8THTwXQMSXpax13jHQg%40mail.gmail.com. -- 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/92014AA2-E884-4AEE-A94D-B2353FAC88F5%40zeelandnet.nl.
