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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

  • T.O.: For $29 I can get 10 STM32F1 mini boards plus external debugger, free shipping. $0.99 would get me bare microcontroller if I need own board....
  • KH: However innocent it may be, I'm not impressed by the choice made by the creator of the image. Now, I'm not the most politically correct...
  • cyk: A simple google search for "free arm ide" lists CooCox on the first page: http://www.coocox.org/index.html Supports a ton of different ARM M0/3/4 micros and all...
  • Stennly: Despite the popularity of STM32s, it may not be the best place to start. As mentioned already, the Silicon Labs gecko family is cheap to...
  • Pete Juliano: Since this posting on my blog I have received an excellent suggestion on how to quickly disconnect the 48 VDC from the amp so you...