[neonixie-l] Re: Can anode current limiting be replaced with cathode current limiting?

Individual cathode current limiters work great... Stole the idea from Greg's B7971 design. Note the transistors and current set resistors lining the display in the photo below. First light today on this Sperry SP-151 Panaplex. In this case, I'm using individual cathode limiting due to widely di

[neonixie-l] Re: PV Electronics R568 Clock Project With Black R|Z568M Nixie Tubes

> I got my acrylic cover today and had some picture on the final build. > Thanks everyone that helped with this project. It is my first time clock I > built but all the advice got me to this phase. > Thanks for all the help. I am not good on photography so please excuse the pictures I post

[neonixie-l] Re: Can anode current limiting be replaced with cathode current limiting?

No difference; current is current, and that is what determines how bright the glow will be. However, the circuits you posted are quite different. The anode-resistor provides current-limiting, but no current regulation: If the supply voltage or the tube's voltage drop change, so will the anode c

Re: [neonixie-l] Can anode current limiting be replaced with cathode current limiting?

Allen, This should work. It's not done because it uses more parts than does anode current limiting. My Nixie watch design uses a current limited power supply, which is a more efficient way to do this, but only in a multiplexed design. On Nov 11, 2017 2:38 PM, "Allen Dutra" wrote: Greetings Ne

[neonixie-l] Can anode current limiting be replaced with cathode current limiting?

Greetings Neonixie group, Anode current limiting seems to be a fundamental design element when using Nixie tubes. Yet is there anything fundamentally wrong with limiting cathode current instead of anode current, assuming a design will reliably turn on one cathode at a time?

[neonixie-l] Re: My first power supply!

There is no ripple that I can detect with my 'scope. As for saturation. I don't *think* so. I don't see any collapse in output voltage or surge in input current (would I? I don't know). The transformer is pretty capable, even though it is a little on the small side. I have got some potentially

[neonixie-l] Re: Upside-down nixies

Nice tubes, thanks James. But I am looking for tubes with larger digits. I think I will apply plan B and use 6 x Z5660M with a 3D printed socket to hide the pins and put the cables behind the tube. I hope it looks then like a candle in the crystal ball. -- You received this message because you

[neonixie-l] Re: threeneuron's Dekatron clock

On Friday, November 10, 2017 at 12:22:10 AM UTC, Phill Scanlon wrote: > > > To summarise. The only pins which MUST be identified are the Anode, the > Guide and/or Guides. > > Well, all dekatrons do have at least one main cathode brought out to the base individually in addition to any commone