> My original intention was that I would monitor the anode-current for all 6 > tubes, and I could detect a partial filament burnout by checking for > lower-than-expected current. Software could isolate the failing tube, then > shut down the clock. Unfortunately there is a source of noise in the op-amp > summer circuit I use that gives me erratic current readings. Eventually I'll > figure out what's wrong.
I would have used a current regulated supply for the filament (well, six of them in your case), which will also automatically give a nice soft start-up, and allow you to easily monitor the filament by monitoring its voltage. - John -- 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 on the web, visit https://groups.google.com/d/msgid/neonixie-l/E3F812D0-8217-4E2E-955B-DB2D635B4B74%40mac.com.
