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Light Logic And Much More

Imagine Light Logic, Tesla Coils and Nixie display tubes combined

dr-cockroachDr. Cockroach
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This is perhaps the oddest combination I have decided to work with to date. I recently became interested in Tesla Coils. Now that I have a low power TC working I want to explore the thought of controlling Nixie tubes using Light Logic. So far my very basic testing says yes I can. Thanks Yann.

Just about everyone who starts messing around with Tesla Coils begins by lighting up Neon tubes and I have that working quite well with my 6KV coil. Not impressive by any means but I want to see how far I can go using my Light Logic sequencer to control a Nixie Tube as a decimal display/counter. So far my initial tests indicate that I can do this as long as I keep safety in mind around the high voltage from the Tesla Coil output winding. In the examples below, the yellow lead attached to the two LDR's has its other end in close proximity to the HV coil but not touching. It can be seen that a LDR does act as a switch for the selected Nixie digit by just directing a light source on one LDR or the other. Just like a Light Logic element will do.

  • Bringing It Togeather

    Dr. Cockroach • 08/22/2022 at 16:02 • 0 comments

    August 22, 2022

    I finally have a circuit that works best for controlling a Tesla Coil powered Nixie via Light Logic. The use of a relay between the LL gate and the display tube is needed as the relay provides the HARD ground required to switch the Nixie digits. The LL CdS cells just do not like the high rf voltages from the Tesla coil. Two LL gates in parallel are also needed to control the large automotive relay I am using for this experiment.

  • Controlling a Tesla Coil Powered Nixie with Light Logic

    Dr. Cockroach • 08/18/2022 at 13:21 • 0 comments

    August 18, 2022

    Wow, a long title but it says it all so let's dive right into it. I take a wire and loose couple it near the secondary of the Tesla Coil. That wire feeds high voltage to the anode of the nixie tube. The tube cathodes are switched by the output of the Light Logic sequencer.  There is still a lot of work and investigation to do but this set-up does prove enough to me that it works. The digits in the video flash by quickly so appear blurred but the digits are cycling 0 through 6.

    The blurring is also being caused by the CdS cells do not completely stop the path of the HV RF in the circuit so the digits not selected tend to glow a bit. I am already looking into adding a relay in the control circuit.

  • Intermission

    Dr. Cockroach • 08/14/2022 at 19:11 • 0 comments

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Dr. Cockroach wrote 08/14/2022 at 16:48 • point

:-D

  Are you sure? yes | no

Yann Guidon / YGDES wrote 08/14/2022 at 16:46 • point

Muahahahahahaha..........

  Are you sure? yes | no

Dr. Cockroach wrote 08/14/2022 at 16:51 • point

Muahahahaha is right, I have 4 Nixie tubes from a clock project that is still in the box. Figured that I might as well use them for something other than a modern clock ;-)

  Are you sure? yes | no

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