CC2 chassis used delta gun black matrix CRT's 17", 19", 23", 25".
The 13" introed in 1975 ( G line 1976) used a conventional in line CRT
In H line 17" & 19" in line EFL CRT's were used on the better models.
A hand full of them could light up Fenway Park they were so bright...
K line sets marked "System 3" used the EFL in 19" & 25"
L line had the last CC2 delta, a 23" set. All others were EFL
M line was ALL EFL's 13, 19, 23, & 25 inch.
73 Zeno
LFOD !