1948 Bakelite Admiral Question

[old_coot88]

Originally Posted by Unimatic1140

So as for the CRT socket:
Pin 2 +0.6

That's the control grid (G1). It should rise to around 100-115V as you advance brightness to maximum. Does it?
In other words, its bias relationship to the cathode (pin 11) should be at or near 0V at max brightness.

What is the voltage directly at the brt.control wiper as you turn the control stop-to-stop? What is the voltage at the top (hot) terminal lug of the control? Just for the heck of it, check for continuity in the wire going from the wiper to pin 2 (just on the chance there might be a break in that wire).

Pin 10 437 (sams says should be 400)
Pin 11 116 (sams says should be 115)