a real challange?

[Yamamaya42]

Originally Posted by Kevin Kuehn

Another thought is the tuner and IF sections have a whole slug of 1500pf power supply bypass caps between B+ to ground. If pulling those RF and IF tubes doesn't give results, it's possible you have one or more bypass caps that are leaky. Also if you disconnect one end of R39(Sams 150 ohm) you would free up that 135v supply from the 4th IF stage forward. Something needs to give and it's simply a matter of sniffing it out. The key here is you need to divide and concur to find out what circuit is pulling the voltage down. Forget worrying about your picture quality until you find what is pulling that B+ down.

well. the 6.75k resistor is definitely testing too low, by almost 1 k out of circuit, it's a 3 resistor thingy stuck in 1 pack, the other 2 check fine 12 & 93 ohms.
i got new ones coming Tue, and will replace the 6.75k first and see what happens.