Thursday, 1 November 2018

Russian PI metal detector circuit.

Russian PI metal detector circuit.
Classical Russian PI detector where only few components were used working fine
LM555 , TL062 , IRF 740 or 840 . ( IXQT0460P2 in my case)

 Contentious tone from speaker but change in tone if metal found 


Testing video click below link

on

1 comment:

  1. Anonymous29 November 2019 at 23:01

    Hi
    Why do we use 400v or 500v mosfet like 740 & 840 and not use IRFZ44 or 3205?

    ReplyDelete

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