Hello to all members of this forum. I wanted to ask for help in building a simple tube tester based on Arduino like this one: http://agalavotti.altervista.org/TubeTester1/TubeTester1.html I made a test assembly and had the following problems. I only have the correct reading of Vg (input -8.3v, reading -8.3v), Va (input +200v, reading +9.34v), Vf (input +12v, reading +0.53v), they are well below the input value. As for Ia, I wanted to ask for help on how to connect the A2 port of the ADS1115 to the analog part of the circuit. My goal is to test normal tubes ECC81, 82, 85, 88, EL84, EL34, etc. Thanks to anyone who can help.
Thank you, Fernando
Thank you, Fernando
