2 Responses

  1. Brian says:

    How low is the input? Also, how high is the output? I could use something that works on low millivolts. Thanks

    • admin says:

      I searched for DSC_0062S5 in my media but I couldn’t find it. If you leave a comment at the blog, not the photo, I should be able to find it.

      I have a schematic of a JT made with five JFETs that worked with a thermocouple as the input. That measured about 40 millivolts on the input. I believe the JFETs were 2SK170 or 2SJ170, with odd pinouts.

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