[neonixie-l] Re: Constant current source design

2017-03-25 Thread Laurence Wilkins
> > Yes, I agree with Tomasz, the first circuit shown in the article he links > to is the way to do it. Advantages: No "wasted" current draw, cheap and > easy. Ignore the comments in that article about the problems of voltage > drop - that might be important when you've only got 5V to play

Re: [neonixie-l] NOT another nixie clock!

2016-10-11 Thread Laurence Wilkins
Thansk for your thoughts, Greg. The final choice of processor is probably going to be influnced more by software development (and learning curve) that the hardware costs, given that I doubt I'll make even 50 of the finished NDMM (as it will henceforth be known). I can crash about a bit in

Re: [neonixie-l] NOT another nixie clock!

2016-10-08 Thread Laurence Wilkins
this project, > and count me in for a kit. > > All the best, > Sam > > > On 2016-10-07 15:07, Dylan Distasio wrote: > > I would love one, and applaud the idea, but that price point will put > > it out of range for me. > > > > On Oct 7, 2016 3:0

Re: [neonixie-l] NOT another nixie clock!

2016-10-08 Thread Laurence Wilkins
Yes, my envisioned Nixie DMM will include a frequency counter, but not fancy period or averaging functions, not much beyond maybe 40MHz. On Saturday, 8 October 2016 16:11:05 UTC+1, Jonathan wrote: > > I too have as many clocks as I need, although I haven't made as many as > you. I have a

Re: [neonixie-l] NOT another nixie clock!

2016-10-08 Thread Laurence Wilkins
Thanks for your note. Well, you can buy "front end" DMM chips that just do the measuring with no built in display, but some serial I/O to a processor/display/keyboard combo. That's my route. Not settled on the processor, yet. I also play with Raspberry Pis, and while I might use one for early

Re: [neonixie-l] NOT another nixie clock!

2016-10-08 Thread Laurence Wilkins
would love one, and applaud the idea, but that price point will put it > out of range for me. > > On Oct 7, 2016 3:02 PM, "Laurence Wilkins" <in...@bcaf.net > > wrote: > >> Over almost the last ten years, I have been designing, producing and >> selling

[neonixie-l] NOT another nixie clock!

2016-10-07 Thread Laurence Wilkins
Over almost the last ten years, I have been designing, producing and selling a variety of logic and PIC Micro-controlled nixie clocks, from classic 2x3 mux 74141-based designs to multiplexed and direct drive IN18 monsters, to miniature desk clocks and single digit weirdness. I feel I've