thanks, dieseljeep!
unfortunately now I think I've really hit an issue...possibly the reason the set was retired in the first place. it appears that the secondary winding of the vertical blocking oscillator transformer has gone open
SAMS only lists a Majestic part number: C-9.230-4 with PRI:160ohm and SEC:1.3Kohm. I doubt I'll be able to find an exact replacement, but there are tons of them in stock on oldradioparts.com...I guess I just need to figure out (roughly) what the ratio is.... does anyone have a ballpark-estimate of a substitute range? It's for a 6C4 with 155V at the plate, and -48V at the grid if that helps.