3Instructables637,790Views96CommentsWest end N.C.Joined December 28th, 2010
My name is Roland MacDonald, my friends call me Mac
I am a retired but not bored engineer
My great joy is my workshop, a two car garage with heat and air.
I am a private pilot with 1800 hours flying time
I have built four Kit planes and restored two Cessna aircraft
My last contact with electronics was in the vacuum tube world.
I am really enjoying the new transistor world.