Gang, In case any of you are having this problem, in my case it was R8, the screen grid resistor on V3, the Buffer. It is supposed to be 68K, but it measured over 200. Many thanks to Roy, K1LKY for his advice and encouragement and to Tom, W4UOC who told me four years ago that he'd had this happen. I never seemed to remember it when I had the Ranger open. Harry Vaught, KT4AE Lawrenceville, Georgia