Some of the problems that I’ve been having with it could be due to the fact that I’m running it off the oil rigs power, we use our own diesel generator out here rather than power from the power lines. I’ve measured the mains before and it varies from 109V - 115V and from 40Hz to 70Hz usually it’s at 50Hz though. This schematic is designed for US mains power of 120V 60Hz.
Sent from my iPhone > On May 19, 2019, at 05:20, Jon <[email protected]> wrote: > >> On Sunday, May 19, 2019 at 6:42:25 AM UTC+1, Thomas Kummer wrote: >> Yeah, I know that swapping G1, and G2 is how you change directions. Both >> tubes won’t spin counter clockwise maybe cathode poisoning is the problem. >> It sticks on a cathode after making a few revolutions. What would you swap >> on the schematic to run a GS10D? > > > OK, just sounds like the tubes are slightly sticky - happens quite often. The > good news is that if you can spin them OK in one direction, they can normally > be unstuck in the other direction. The simplest thing to try might be to run > the tubes clockwise for a couple of hours to generally clear the crud off the > cathodes, and then try changing the direction. If that doesn't work, my next > move would be to increase the magnitude of the guide pulses. I'm not familiar > enough with Mike's circuit (or indeed valve circuits in general) to > confidently recommend the change - if I had to fiddle blind without access to > an oscilloscope or other test gear I'd probably try changing R11 and seeing > what difference that makes. > > Your GS10D will need more anode current than the 6476 & Z562S, so reduce the > anode resistor to 300K. It also needs larger guide pulses than the other two > tubes, but I don't know what the circuit is currently producing in order to > judge how far off spec they currently are. > > Jon. > -- > 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 post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/773ef80f-9275-4ee0-a957-920e9873190a%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/3BEA6504-834F-4FE9-82C0-B1A6917E490E%40gmail.com. For more options, visit https://groups.google.com/d/optout.
