Now how do I put this.... Before most of you were born I was fighting Vietcong... If you read your history books there was a war in a little country called Vietnam... It is located in the South East corner of Asia. I did my formal training on thermionic valves, OC70 and series transistors and OA90 series diodes. Anyone ever built a JK flip flop out of triode valves? Actually 52 going on 26 - I have a 2 year old son. So dont call me old.