Surfmaster PI Metal Detector Schematic Diagram

  
Inside:
Repository
If TIP32C (Q2) gets excessively hot, use an IRF9640 MOSFET instead. Experiment with different values for R6 to find the optimal value (I use a 390 ohm resistor). Temporarily substitute R6 for a trim potentiometer (470 or 1k) to find the optimal dumping resistor for your coil.
Surfmaster PI Metal Detector Schematic Diagram - schematic




Leave Comment

characters left:

New Circuits

.