ESR tester stimulas - Generic 555 Astable Generator

221

01:58:26

Remake of simple ESR tester by faceblast (http://ludens.cl/Electron/esr/esr.html)
made with EveryCircuit components works as original, but in real life needs an exotic double opamp chip. 
I tried repeat functionality of that tester with 555 timer as stimulas and with simple common base amplifier as sensor (see "Vintage Sensor for ESR tester"). 

published 10 years ago

hurz

10 years ago

But were is the cap under test. It suppose to be somewhere at the secondary lower impedance side of transformer. And were is the amplifier for the GUI interface?

alexmayorov

10 years ago

Left end of CUT goes to upper end of 10_Ohm resistor. Right end of CUT goes to the ESR sensor.

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