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Eight Henry inductors from an old “tube” radio receiver

Tuesday, December 4th, 2012

Kenneth takes apart a few old "tube" radio receivers and finds 8 Henry inductors inside, which is several orders of magnitude more then regular inductors we're accustom to. He proceeds to hook it up to a 10 uF capacitor, and tests the ringing frequency of this LC circuit. This LC...

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Posted in Teardowns | 2 Comments »

Recent Comments

  • Edward Mallon: I've managed to get cheap thermistors calibrated to about to +/- 0.2C with 3.3v Arduinos. https://edwardmallon.wordpress.com/2017/04/26/calibrating-oversampled-thermistors-with-an-arduino/ Instead of playing whack-a-mole with the various sources of...
  • Ja: What the keyer do? Sends random morse code or there is some input? If someone can point me to some source to read I would...
  • Sorin: Pleasure of free!
  • hli: Sunday++
  • Max: Jolly good stuff, although the "include 100 W resistors in series with the inputs and outputs" part is quite hilarious until one realizes* they meant...