OK gents its a CTC87A. RCA's 1st non modular SS 13". Remember
those boxy ones with all the FBT's ??
Anyhows the G-2 A.K.A. screen control is on the right rear by the
horz & vert hold controls.
CRT voltages
pin 12 G cathode 133V
pin 3 B cathode 128V
pin 8 R cathode 128V
pin 9 G-1 19V
pin 10 G-2 350V
pin 1 focus 7.5 KV !! HV probe only !
Look for a way off voltage.
73 Zeno
LFOD !