Hi again Torben,
I like the look of that circuit, and I don't mind using the odd SMD component, but alas I dont have any of the ones in the circuit.
I do however have what I hope would be an equivalent for both the FMMT458 and the FZT857, its the JE340p, sheet attached!
I also have a good few ICM7555 ICs, sheet attached,was thinking would be a possible substitute for both SCT1555 ICs, what do you think?
Anyway thanks for the help so far, its much appreciated........Al