3 ms·
Why wouldn't you just use one of the many chips designed to run VFDs, like the MAX692x series, or even a couple of SN74141s? VFDs on eBay seem hit-and-miss. S
by kjs3 4y ago
Why wouldn't you just use one of the many chips designed to run VFDs, like the MAX692x series, or even a couple of SN74141s?
VFDs on eBay seem hit-and-miss. Some days there's a variety; some days it's just basic stuff. If it's something really unusual, grab it because once it's gone there may not be any left.
- jareklupinski 4y agoThose chips are great for switching the segments on and off; my trouble is with the (ideally AC) supply for the filament. Others have had success https://kevinrye.net/index_files/vfd_ac_filament_driver_v11.php https://kevinrye.net/index_files/vfd_ac_filament_driver_v11.... but somehow I have trouble replicating their schematics...
- kjs3 4y agoGotcha. My bad...I didn't fully understand the issue you are working.