12W6 versus 12L6

[maxhifi]

Originally Posted by dieseljeep

Looking through the various schematics of sets using a similar design, I see that some manufacturers used a 12W6, 12L6, 25L6 and few others! Westinghouse used their own, a 12EN6.
Then theres Muntz, with their own Vertical oscillator, Vertical output reflex circuit using a 12AV5GA. They were really fussy about the brand of tube used. It had to be a GE! Otherwise the vert lin and height couldn't be adjusted right! Also affected the vert hold range!

This is a series string table model from 1958, with a 17" screen and a vertical chassis. If other brands used a 12L6 in this place, I'm definitely leaving it alone, thanks for checking that! That Muntz design sounds clever.