• This topic has 1 reply, 2 voices, and was last updated 4 months ago by mwpeters75.
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    • #8872
      LectronFan
      Moderator

      Hi all,

      When experimenting with the NTC circuits, I noticed that there’s a difference between the Legacy and modern NTC version.

      Although the module looks the same, the actual NTC component differs in value.

      The legacy NTC looks like a carbon resistor and has a value of 15k Ω at 25°C or 77°F.

      The modern NTC has a value of 6,8k Ω at 25°C or 77°F.

      Since this is quite a big difference, care must be taken when designing circuits.

      For further experiments, I will add the NTC value on the diagrams to avoid errors.

      If you look at the post “The Impossible circuit”, I redesigned experiment 46 of the school (Ubung) system manual with different versions. Have a look and try these circuits out !

      Many greetings

    • #8884
      mwpeters75
      Keymaster

      Thank you Frank for the latest challenges!

      Best,
      Michael

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