On Wed, Feb 23, 2022 at 11:04 PM Jon <[email protected]> wrote: Thanks to Martin, Eric and Jon for their answers.
However, if I understand Paolo's post, he's using Mike Moorrees's circuit ( > https://threeneurons.files.wordpress.com/2011/09/we6167ckt.gif) which > leaves the auxiliary anode disconnected. When I ran 6167s in this > configuration they were generally much more reliable in not sticking on > K10, though I was using rather different circuit conditions: > > - Va = +400V with respect to main cathodes > - Transfer pulses 60V amplitude from a resting bias +30V with respect > to main cathodes > - Anode current 1.3mA > > > Paolo, can you confirm you have indeed left pin 5 unconnected? > Yes, I confirm I used that circuit from A to Z. Then I varied the bias voltage and/or anode current (up to 1.5 mA), but both auxiliary anode and reset were floating. I will rebuild the test setup with an external power supply that can provide more current, as the LM393 booster is struggling with 2 mA at 400+ V, and use zeners to derive the bias. According to Jon's list, a starting point for voltages should be: - main cathodes +30V, - transfer pulses from +60V to 0V, - main anode at +430V; - K10 current at 2mA which brings - auxiliary anode at +115V (datasheet PDF, 4th page) I wish we knew which device used W.E. 6167 dekatrons so that we could have a look at the diagram... Paolo -- 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/CABj2VaZfJG8D-06tBKeqby42mZ9UKhe8G2foez2KupcYpsAM%3DA%40mail.gmail.com.
