Henrik_V

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Henrik_V

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  • 10.12.2017
  • Nixie clock: Tearup
  • For a long life avoid to multiplex nixies. And for those who need nixies from actual production: https://youtu.be/wxL4ElboiuA
  • 04.01.2017
  • Transcendental resistors simplify precision design
  • I really wonder why nobody just turn the resistor to make it complex? By choosing the rigth direction capacitive and inductive solutions are possible! Even combinations :) Greetings from Germany Henrik The number you have dialed is imaginary, please turn your phone 90° and dial again!
  • 03.07.2017
  • Measuring appliance power consumption
  • Use a current clamp or current transformer for the current, a ligth loaded small transformer for the voltage, feed it into the soundcard, spend an hour for the software, do a little calibration and you have your DIY power analyser :)
  • 10.05.2016
  • Why is everything junk? (Heat-pump edition)
  • While the root cause is the 'noise' of the heat pump, and filters there are at least bulky ... How about trying to silence the induction heater? An AC filter there could be smaller. And if you are willing to tear down the heater : Can you run it with 110V*SQRT(2) DC? Mean: I assume the first thing in there is a diode bridge ... wait... and a power factor correction (?) ... however 'cleaning' the DC part in the power supply of the induction heater? I wait for the news telling that the LED bulbs are singing too ;)
  • 08.18.2013
  • What happened to my scope?
  • Thank you Alice, for pinping my sope into a MUFFIN-O-MATIC, but when I told you to ask mom to make you a muffin, I didn't mean I can't do it. .... However I have to admit, it's more envolved than your DADDYS-HIFI-BOX-HAMSTER-CAGE