> I have a few unmarked VFD tubes that I belive is the General Electric > Y-4075, but know nothing about them. They looks exactly as the tube > pictured at: > <http://www.decadecounter.com/vta/articleview.php?item=961> > That's the only information I has found about them. > > Have tried to apply filament voltage until just below where it glows > and they works nicely, but I would appreciate a data sheet giving the > correct filament voltage.
I figured Radio Shack used to provide data sheets for many of their parts, so I tried doing a search on 276-050. Unfortunately, Radio Shack has re-used that part number TWICE now. Once for a red LED, and again for a solderless breadboard. I'd suggest emailing the good folks at decadecounter.com and asking them if they'd scan the other side of the card it came on. There's probably at least minimal data there. Then again, Google is your friend: Data sheet here: http://4sale.sbszoo.com/tubes/Y-4075.pdf Short version: filament 1.2V, segments 27V. Note that the data sheet states 4mA nominal and 9mA max for the filament, but on the example schematic, the filament is called out at 1.5V at 43mA. I suspect the schematic was lifted from the data sheet for a different (probably larger) tube. - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
