The CTC-5 Contrast Control Modification

[NewVista]

If you want to see elegant, look at Admiral (simplicity that works great)
If you want to see berserk, look at Motorola ( their crazy early 50s B&W)

What is C402 doing coupling signal back to the screen divider?
Other end of brightness goes all the way to H-out grid just to find -35v?
Both Brightness & Contrast controls are weird, the Contrast Mod is
a good start but there's scope for more improvement as DC performance
is poor