Re: [neonixie-l] IV-4 vs IV-17 - What's the difference?

I have 100's of each...I can't discern any noticeable difference between the two physically (except the numbering on the back!) :) On Wed, Jun 9, 2021 at 3:31 PM tntmod54321 wrote: > As far as I know iv-4 tubes are also rated for a longer lifespan and it > might just be my eyes but iv-17s

Re: [neonixie-l] IV-4 vs IV-17 - What's the difference?

As far as I know iv-4 tubes are also rated for a longer lifespan and it might just be my eyes but iv-17s appear a little chunkier On Wed, Jun 9, 2021, 5:27 PM Nicholas Stock wrote: > The only difference I know of is the filament voltages are different by > 0.2V. When operated in multiplex in

Re: [neonixie-l] IV-4 vs IV-17 - What's the difference?

The only difference I know of is the filament voltages are different by 0.2V. When operated in multiplex in the correct range, both IV4 and IV17 look identical in my experience. http://www.tube-tester.com/sites/nixie/dat_arch/IV-4.pdf (filament 2.6V)

[neonixie-l] IV-4 vs IV-17 - What's the difference?

The subject says (asks) it all. I've read that they're identical. Perhaps the IV-17 came later? OTOH, I've also heard that VFDs with newer dates are dimmer. What's the skinny? Terry Bowman, KA4HJH "The Mac Doctor" https://www.astarcloseup.com “...the book said something astonishing, a very

Re: [neonixie-l] Re: Need some Nixies? Not my sale

Similar story for me. I bought an FM signal generator from a friend back in 1975 because it had nixies and very cool illuminated switches. Kept the freq counter for a few years, junked it for the nixies, and they sat in my junkbox for about 30 years. Then in 2011, I finally built my first nixie

Re: [neonixie-l] Re: Need some Nixies? Not my sale

I've got an HP 5326B frequency counter I picked up at the TRW swap meet in Los Angeles at least 20 years ago - of course, it was old then (1970's vintage). Even now though, it's astonishingly accurate - it agrees out to +/- one count in the 7th