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Thanks Vincent, but that is not an option, I would like to have 300V @20mA peak at my disposal for *one* Nixie tube. I think I will have to contact the people from Traco, hmm, unless someone of you

Most simple way seems to me to just split the nixies; half powered from one module, half from the other.

Is there a way I can use my two MHV's parallel? > I'd suggest a call or email to their applications engineering group. They may tell you how to do it, or refer you to an app note about it. Terry

Hello folks, I am planning to build a "decent" 0..300V Nixie tube power supply. My thoughts: I have two of the MHV12300SP described here:

Care to explain what that 1K resistor i circled in red, does ??? I am temped to try it out - just a big waste of time laying out that elaborate PCB for all that chips spaced close together.... I

Yep. I breadborded the circuit to death before going with Hans' schematic all the way. I simply could not get it to work! - I had problems with ghosting, strange noise issues and so on... Wiring up

Yep. I tried connecting the two secondaries in series to obtain a higher voltage, but found out that the 170 volt secondary just won't cut the mustard - it sags a lot under load, so i scrapped the

David, I'd like to see the Prius, but your link is broken. Terry

Does this forum cater for magflip displays? I used to work up the road from a roadsign company and I rescued several such displays, enough to make a 6 digit clock after swapping out the dead pixels

worked for me. Funny. Didn't even turn a head, did ya? (http://www.selectric.org/10main/nautilus2.jpg) > David, I'd like to see the Prius, but your link is broken. Terry

Hi All, Can anyone point me to a circuit diagram and/or a controller chip that will let me build a clock that chimes on the hour? (One chime for 1 o'clock, three chimes for 3 o'clock, etc.) I was

Everything in our camp is solar powered. Of course, someone in the next camp over always parks their RV with its generator facing us. I'm bringing SatanVision, a big LED television that I built last

Burning Man ! That's something I gotta go to before I keel over: http://en.wikipedia.org/wiki/Burning_Man http://www.burningman.com/ One of the regular trio, to the TRW Swapmeet (tomorrow 8-28), Gary,

Yeah, I figured you were doing something tricky with those emitter pull-downs, but I'm too busy working on the Burning Man packing stuff to do a proper circuit analysis. Thanks for the lucid

I did a little 'Muntz' to rid myself of an extra resistor per stage. As you notice all the bases, of all the MPSA42s are tied to a roughly fixed 3.4V. When one of, the 3, stages is ON, its emitter is

That's a pretty simple circuit to get the job done. One question - what sets the 280 uA current in the MPSA42 collector to MPSA92 base connections? Shouldn't there be a big resistor there? The MPSA42

Here's a drawing of my last rant: http://a.imageshack.us/img823/8574/nixiemtr.gif Feel free to try it out. This place seems to still have the chip: http://www.abra-electronics.com/products/CA3162.html

Fully operational, but later in the description he contradicts this by saying the sign board does not power up. As for a home clock, I think the diesel generator might keep you awake at night. Joe

I like it! I've been needing a sign like that to warn my neighbors about the zombie invasion.