[neonixie-l] Re: Numitron Clock: 1V ripple on supply voltage due to PWM?

2011-08-07 Thread jf...@my-deja.com
On Aug 7, 1:41 am, jb-electronics webmas...@jb-electronics.de wrote: I know there are some radio Nixie tube clocks out there, so there's got to be a way. They probably are not multiplexed. All my nixie clocks with multiplexed displays produce lots of RFI that wipes out

[neonixie-l] Re: Numitron Clock: 1V ripple on supply voltage due to PWM?

2011-08-07 Thread Nick
On Aug 7, 5:01 pm, David Forbes dfor...@dakotacom.net wrote: On 8/7/11 1:41 AM, jb-electronics wrote: David, The short answer: Don't use PWM next to a radio receiver. You are introducing an interfering radio signal. thanks for your reply, however, it is not quite what I was hoping for.

Re: [neonixie-l] Re: Numitron Clock: 1V ripple on supply voltage due to PWM?

2011-08-07 Thread Adam Jacobs
This is what I did as well on my WWVB clock. At night, when the clock tries to sync, it tuns off both the HVPS and the nixie mux (to get as electrically quiet as possible). You're still going to want to get it away from the other devices that are nearby QRM that you can't turn off via clock

[neonixie-l] Re: Numitron Clock: 1V ripple on supply voltage due to PWM?

2011-08-07 Thread Nick
On Aug 7, 8:09 pm, Adam Jacobs a...@jacobs.us wrote: Nick: That's neat, I didn't know you worked at a radio telescope. Pretty cool. Not me - that's David. I used to work at an extremely boring hedge fund! Nick -- You received this message because you are subscribed to the Google Groups

Re: [neonixie-l] Re: Numitron Clock: 1V ripple on supply voltage due to PWM?

2011-08-07 Thread Adam Jacobs
Hah, my bad. :) On Sun, Aug 7, 2011 at 12:42 PM, Nick n...@desmith.net wrote: On Aug 7, 8:09 pm, Adam Jacobs a...@jacobs.us wrote: Nick: That's neat, I didn't know you worked at a radio telescope. Pretty cool. Not me - that's David. I used to work at an extremely boring hedge fund!