Quote:
Originally Posted by Kevin Kuehn
I guess you could also test that theory by pulling your vertical and horizontal output tubes and seeing if your current draw decreases substantially? I think it's highly unlikely that several 5U4's don't have enough snuff to power the circuits. This company has new 5U4GB for $12. Why not keep the rarer 5U4G's for after you get all the bugs out? http://www.abcvacuumtubes.com/vacuumtubes_tubelist.html |
Well you have to remember that before I got the bugs worked out of the power supply I did
most of those tubes pretty hard (to borrow InItForFun's words) .
Also when I pulled the Vertical and Horizontal output tubes the current draw dropped significantly from 194 Watts to 149 watts, so I think maybe the 5U4 is probably part of the problem, unless there's something else that I'm missing...
So an update, I do have HV and the Horizontal Oscillator is running again, and I think the vertical maybe running again as well, but nothing on the picture tube yet, (I flipped the TV on its side and turned it on and I heard the distintive high voltage buzz and I didn't hear that before).
Also something is still smoking R62 yet, but I think I figured it out, I think it might be R31 which is supposed to be a 27K Ohm 4 Watt resistor (2 56K Ohm 2 watt resistors in Parallel), which are out of tolerance as it only measures at 20k Ohms, that's the only thing I can think of that could be causing my R62 to smoke as that's the only other thing in the path of R62 in the circuit (I even traced it out on the schematic and nothing else was in the path of R62 that I saw of that could be causing R62 to smoke, unless there's something wrong with my 6AC7 tube that's causing it to smoke.