Michael, to avoid cathode poisoning of those expensive tubes, you'll want to "replace the anode resistors with 10K 1w flameproof" resistors.
I put that in quotes because that is straight from Jeff Thomas' email on the subject. Also from Jeff: "Use a slightly higher voltage output AC power transformer. The original is 14V if I remember correctly, and preferably select a 16VAC @ 500ma" Terry On Saturday, December 19, 2015 at 7:25:08 PM UTC-6, MichaelB wrote: > There's another one-to-be out there. I got hold of an original PCB from > one of our kind MOD-SIX customers and with the help of another WWVB owner > am currently building one. Very excited to get it running! > > On Saturday, December 19, 2015 at 8:56:16 AM UTC-8, Terry S wrote: >> >> I was poking around the archived Jeff Thomas site this morning, and >> reading up on the WWVB radio controlled clock. Jeff wrote that only one was >> built, and delivered to a celeb in Vegas. >> >> I was collaborating with Jeff on another small project back in those >> days, and he sent me a PCB & tubes to build the clock. Is it possible I >> have the only other WWVB clock of Jeff's design in existence? All this time >> I was under the impression that he had sold these clocks to others. >> >> It uses the enormous Z568M tubes.... and has worked flawlessly for 13 >> years. Several years ago, I fixed a problem with cathode poisoning, with >> Jeff's generous help. >> >> Anyone else have an example? >> >> Terry >> > -- 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/53729ebc-6dc9-47be-a64a-99638f6f730d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
