1947 fada tv 125

[ctc17]

Originally Posted by timmy

with the chassis on bench no crt control grid pin 5 of hot is neg 101 vdc and screen grid 205 vdc. pin 5 should be neg 94 vdc pin 8 should be 165 vdc.

If the screen should be 165 and is measuring 205..

The tube is weak or there is excessive plate current.
Some kind of overload in the output like shorted fly, bad linearity coil, bad yoke, bad caps, bad damper, something causing the fly to be overloaded.
I guess if the frequency was way off it could cause that but if it was low you should hear it squeeling