Hi folks
I would like to say thank you to Steve (fettler) for supplying me with a frequency counter that initially would not count and needed the fault put right. And thanks to everyone who has given a little help with suggestions on the fault, I have now successfully repaired the counter by replacing one of the IC's namely a MC10116P which is better known as a Triple Line Receiver I obtained a couple of these from Little Diode who specialise in obsolete types of components such as these.
Best wishes
Ken
