Hi,
i tested a voltage detection circuit but while it works i would like to increase the sensitivity.
I tried both bc547 and bc517.
I did try to replace the led with a basic lm386 circuit and a small speaker.
Concerning the magnetic field detector, i'm looking for a very very sensitive detector (natural magnetic fields)
Thanks in advance for your help!
Johnsy.
i tested a voltage detection circuit but while it works i would like to increase the sensitivity.
I tried both bc547 and bc517.
I did try to replace the led with a basic lm386 circuit and a small speaker.
Concerning the magnetic field detector, i'm looking for a very very sensitive detector (natural magnetic fields)
Thanks in advance for your help!
Johnsy.