On Saturday 10 June 2006 04:38 pm, M H Stein wrote: I had (and maybe still have, with problems) a 425, think that might be close enough? A couple of my old scopes of that sort are in storage, one having an open CRT filament and the other a bad power transformer. I forget which is which. Might have that 425, a "Precision S-100", and a "Paco SS-50" and maybe one or two others besides. Once I got to know that gear well I didn't need schematics, which was a good thing considering that you couldn't find any for most of it, but I think I have the Eico one somewhere. Maybe even here rather than in storage. -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin