I see you have the game of Golf down pretty accurately. Thats what I should have done. Please; so we are using the RS; LM 317 set-up for the filament supply on the Rec tube, is that correct? I really have three diff. schematics in three diff. styles. I am trying to get this down before the trans arrives. The PSUD response; verrry cryptic. I will try to decipher. I am stuck on the model and the method. Your posts are really geared towards one who knows. That ain't me. Thats why I am trying to follow in the textbooks but we come to a logjam occasionally. Still thanks for responding so quickly, that is very kind.