Hi thanks for your kind remarks. There are 2 off 556 chips in the circuit, if the unit should show signs of a problem they can be changed over and the fault symptoms will change if it is a chip problem.
Good luck to all who sail with her!
I can tell you a short anecdote. The club I belong to has an annual exhibition (27th. 28th. Sept 14) and I think a year after publication we had a visitor who had come from South Africa, was staying locally and had come to see us seeking help with the circuit and had brought the magazine with him.
The first person he asked was me as I was selling tickets at the time. He was more than a little surprised when I gave him my name. Small world!
Roy