Parts List:
R1 = 330 ohm
R2 = 1 MegaOhm
P1 = 100K potentiometer (Lin)
C1 = 0.1uF, ceramic
C2 = 0.01uF, ceramic
C3 = 0.01uF, ceramic
D1 = 1N4004 (or Schottky)
Led = Your choice
Q1 = IRF513, T-MOSFet
FB = Ferrite Bead (see text)
IC1 = MC14093, Quad 2-input NAND Schmitt Trigger
Copyright © 2002 – Tony van Roon.
