I’ve had good results using the Microchip TC4425 (MOSFET driver) and driving its inputs with a 10khz square wave to create a crude filament inverter.
http://ww1.microchip.com/downloads/en/DeviceDoc/21421E.pdf Its advantage over the LM9022 being that it’s easy to get :) On Fri, Jul 24, 2015 at 7:16 AM, Nick <[email protected]> wrote: > That would be in thread > https://groups.google.com/d/msg/neonixie-l/HevOjKD3oqQ/vGweitu5eIQJ > > Nice bit of work by John Taylor... > > Nick > > On Friday, 24 July 2015 15:12:30 UTC+1, Nixcited delighted wrote: >> >> >> On 24 Jul 2015, at 14:51, Chaos Hydra wrote: >> >> > I do have LM9022, they are still manufactured in authorized or >> unauthorized factories in China. But anyway, I am planning on use MAX >> 6921/6931, but I don't think they have filament drive on them. >> >> Didn't someone find that the LM9022 was an out of spec something else, >> rebranded or something? Someone looked at the die and it was the same. >> >> I was getting them as official samples long after people on neonixie said >> they were obsolete, but that was some years ago now. >> >> John S > > -- > 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 post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/29b69faa-f89e-4b1c-ae25-4274df5cd4d5%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/29b69faa-f89e-4b1c-ae25-4274df5cd4d5%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAOaa6CjSJH4VhtWHwif5YGs_RvRpTjffoxpwB1vnSR08KmyFoQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
