Added: 4 months ago
From: mimieowcat
Views: 368
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  • What does dl/dt stand for? Can you not measure the frequency? Is there any amperage running through the hairpin? Does the hairpin feel warm or unusual when you hold it. Can you hold one of the terminals and hold a bulb in your hand and it light?

  • @PaulTheAngel dl/dt is a point of THP functioning and the way to understand it! I can measure it only in solid state THP ~2Khz. Can`t hook up a scope ot the spark gap! Of course current flows through the hairpin - during the charge cycle.It seems usual, room temperature. Karl Palsness says it`s hard to sleep after holding the hairpin but it looks okay to me. No, using body as conductor doesnt work as well as water.

  • But what is the frequency of the FART neon transformer when running. You need higher voltage and higher frequency. Much higher frequency.

  • @PaulTheAngel :) fart freqency is 50Hz. But the relaxation oscilator cap-spark gap (or cap-SCR in solid state THP) builds it up to few or even tens of KHz! Taking into account high dI/dt rate it should be enough!

  • The voltage and frequency are far too low to allow much radiant energy to flow. Increase your voltage using a car ignition coil and increase the frequency to 15-20Khz. Your findings will be hugely different. Use a 12v car battery as input.

  • @PaulTheAngel You are talking in poetry! I already have the 10 KV 300W THP with NST and the carcoil circuit as well! Like in my first vid the same effect observed. Can`t see the difference.

    Also the frequency is natural in SCR-circuit, depends on cap capacitance, threshold voltage for schmitt and input voltage. We can change it only through this params.

  • and is the 220v being ramped up by a transformer?

  • @PaulTheAngel Nope. Just like in the circuit diagram - from the grid directly to bridge then to bulb, cap...

  • What is the voltage of the input?

  • @PaulTheAngel 220V rms from the grid

  • What is the maximum load you have tried? One method to prove excess energy is power a motor to power a generator, then measure input agaist output. Have you tried a diode from a car alternator rectifier, as they are built for high amperage.

  • @PaulTheAngel I`ve tried 2Ohm 10W resistor with best results - ~7W output power. Neon triode with ~2W out, small 6.3V 0.3A lamp - full brightness 1.8W. Not mutch comparing with the blalast lamp.

    Yes, motor+generator is a method but I`m not shure if it worth the work.

    No need to use high-amp diodes. There is 150mA max current. And I don`t have any :)

  • Increasing the frequency or the voltage will give you more radiant energy and therefore should reduce the amperage more. What effect does adding a diode after the 40watt ballast bulb have?

  • @PaulTheAngel That`s correct. Increasing the threshold voltage - increasing the output, reducing the bulb brightness. But that`s okay witout radiant energy. With diode amperage ratings are just lower due to diode resistance. Seems nothing unusual.

    If we could somehow get rid of the Z-effect, we would have an additional information... :)

  • The reason the amperage is lower is because the circuit introduces radiant energy, due to the frequency you are switching the circuit at. Just like when you go to put a terminal on a car battery and the spark jumps to the terminal. You can light an incandescant bulb with 20,000 volts at 15,000 - 20000 Hz and with one wire. See Nikola Tesla's patent 454,622

  • @PaulTheAngel Could be. How can we prove that?

    And why the balast lamp goes dimmer and COP<<1?

    The frequency is ~2KHz, but the dI/dt rate is very high during discharge phase.

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