I've used H-bridge drive... Worked fine.. B
On Tue, Jan 13, 2026 at 1:54 PM Adrian Godwin <[email protected]> wrote: > I've never tried it, but h-bridge drive seems reasonable. It will result > in an average of zero volts along the filament while warming it at a fixed > power. > > > On Tue, Jan 13, 2026 at 9:28 PM Per Jensen <[email protected]> > wrote: > >> I wonder how the filament is driven as I see no transformer but two >> inductors - Did anyone look into how these Noritake displays works >> power-wise? >> >> // Per. >> >> On 13 Jan 2026, at 12.49, Tom Katt <[email protected]> wrote: >> >> Since the POS displays seem to be all bought out, I figured that I'd post >> some photos of the Noritake CU24043-Y100 >> <https://www.noritake-elec.com/products/model?part=CU24043-Y100> display >> that I also purchased on eBay <https://www.ebay.com/itm/326162809973> >> for $40 (no relationship with seller)... This is a smaller 20 x 4 char >> display that has many built-in features including automatically expanding >> the chars x2 in vertical, horizontal or both axis. Easily driven by 3 pin >> RS232 serial (+5V, GND, TXD), but I think it's RS232 and not TTL serial - >> so either use a MAX232 module or you can set FTDI adapters to invert TXD >> <https://www.ftdichip.com/Support/Knowledgebase/index.html?ft232rdeviceoptions.htm>. >> The software demonstrator makes it easy to figure out the serial escape >> commands needed to enable the various functions. It's smaller than the POS >> display (about 3" wide x 1.2" tall) but still very legible, especially with >> the large font options. Just figured I'd toss this out there in case >> anyone was interested... >> >> <VFD_1.jpg> >> >> <VFD_2.jpg> >> >> -- >> 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/2b9b4ffd-b68c-4ac2-ba22-1302b6367351n%40googlegroups.com >> <https://groups.google.com/d/msgid/neonixie-l/2b9b4ffd-b68c-4ac2-ba22-1302b6367351n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> <VFD_1.jpg><VFD_2.jpg> >> >> >> -- >> 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/CE3D12F8-5733-492A-8F9F-99BAE2097F7F%40gmail.com >> <https://groups.google.com/d/msgid/neonixie-l/CE3D12F8-5733-492A-8F9F-99BAE2097F7F%40gmail.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/qRWTnRW66hM/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion, visit > https://groups.google.com/d/msgid/neonixie-l/CALiMYru96QkKEA%3Dk8uVhS5SHyb3BhHzwnPjJiS6RCYOtGzv71Q%40mail.gmail.com > <https://groups.google.com/d/msgid/neonixie-l/CALiMYru96QkKEA%3Dk8uVhS5SHyb3BhHzwnPjJiS6RCYOtGzv71Q%40mail.gmail.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 [email protected]. To view this discussion, visit https://groups.google.com/d/msgid/neonixie-l/CAJ0pfvYhWN5OB_CgVCG6nWFkn-7%2Bi%3DnG1EDVpXOXwXy86vPK%2Bw%40mail.gmail.com.
