Peggy 2 Transistor Replacement
  • I am in Australia and the 2stx2220 transistor doesn't appear to be available.
    Does anyone know of an available replacement.

    Any help is much appreciated.

    Thanks
  • One direct substitute is the STX790A.  There are others that will work as well, but have a different pin order.
  • I have looked for the STX700A but it doesn't appear to be available either. I don't mind different pin order as I am making it myself as a larger version without the original pcb.
  • Then pick any high-gain PNP transistor that can handle the current that you need (say, 1 A), and has a very low saturation voltage. 
  • Ok thanks for your help.