I have a few of these - has anyone got a useful schematic for driving them? I understand it's all about energizing a particular solenoid one way or the other for the flip and that that displays are usually organized in some kind of matrix so it's just a matter of applying the right volts to one particular row and one particular column in order to flip the desired display.
>From the spec sheet it looks like even the smaller displays are going to need almost 0.5A to flip so my simplistic idea of a bunch of high and low side switches based on MPSA42/92 wont quite cut it! >From what little I have read (and I understand even less) - some form of 'H' bridge drive might do it. A 4 digit device would have at least 28 solenoids (or 32 if the displays had DP's) so arranging these in a some kind of matrix seems to make good sense. A bit more reading reveals ideas based on multiplexed half-bridge implementations. Has anyone implemented a this successfully? - Richard On Tuesday, 25 November 2025 at 01:48:47 UTC gregebert wrote: > I didn't see any prices posted. What are these selling for ? > > On Monday, November 24, 2025 at 9:46:00 AM UTC-8 Mike Mitchell wrote: > >> I've used those displays for a clock, see here: >> https://youtu.be/hpNliVxZr00 >> >> I've included a photo of some documentation on the displays. >> >> Mike Mitchell >> >> On Sunday, November 23, 2025 at 10:40:28 AM UTC-5 Robert wrote: >> >>> Has anyone else made or bought a clock using these old petrol pump >>> displays >>> >>> This type of display is still available new >>> https://flipdots.com/en/products-services/small-7-segment-displays/ >>> >>> -- 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, visit https://groups.google.com/d/msgid/neonixie-l/e8fa01ec-4aac-40d8-a655-ae99c38a8db1n%40googlegroups.com.
