630 Bleeder resistors

[Geist]

Hi All;
I am checking the power bleeding resistors.. So, far what I seem to have found, is that the upper Round Resistor, seems to be OK.. It is a little low in value, but not serious, Part A, Schematic 1360 ohms, resistor 1338 ohms.. part B, schematic 230 ohms, resistor 224 ohms.. On the part A side it looks a little rough on the outside, part of the outside coating looks like it either was burnt off, or from sitting in a barn, the weather caused it to flake off.. So, should I replace it ??
The lower flat resistor part A Schematic 6750 ohms, resistor 7030 ohms, Part B, Schematic 93 ohms, resistor value varies, won't hold and is in the meg ohms range.. Should I replace Both Parts A and B or just the B side ?? Since it only shows Bad.. I think Part C which shows up in some schematics, this is open, and as a seperate resistor in other schematics.. I will assume it has the seperate resistor, and make the necessary changes, IF needed.. I haven't looked underneath the chassis and tried to find R240, which would be there IF there is no Part C..
THANK YOU Marty

[Geist]

Hi All;
I hope that the no response is because of a mis-understanding of what I am asking.. I am not asking the How to replace the bleeder resistors.. But, whether I should replace the one in the flat resistors that shows good.. The other two are definately Bad, (R186A 93 ohms and R186B 12 ohms) and they will need to be replaced, no problem there.. But, since, this same resistor has two sections that are Bad, I am wondering, even though the one in it is good, (R186C 6750 ohms) should it be replaced on general principles ??
THANK YOU Marty

[Phil Nelson]

I don't think there's a correct answer.

It depends on your personal preference. Some people desperately try to preserve every original component. For others, the main priority is a TV that works reliably.

Those resistors do seem to be a notorious weak spot in this set.

Phil Nelson

[vts1134]

Originally Posted by Phil Nelson

It depends on your personal preference. Some people desperately try to preserve every original component.
Phil Nelson

A tall order when you need to replace a part on a set that isn't used anywhere else and has a very high failure rate.

[Geist]

Hi All;
Phil, Thank You for your answer.. If, I remember right, in your 630, Your round bleeder was bad and Your Flat one was good.. And mine was just the opposite.. I will put in a tie point below the flat resistor, and mount the parts there for now.. once I have it working for awhile, I will find another place for it.. That way I can keep tabs on those parts, checking for more failures.. Since this seems to be the most failure prone place in the set.. What did they do in later sets, that was not so prone to failure ?? In my 8T243 they have a big long flat bleeder resistor, but, I have heard that it caused trouble for that set as well.. Or was it that way with Tube Sets, with all the power draw ??
THANK YOU Marty

[ChrisW6ATV]

On my 8TS30, I only replaced the resistor sections that were bad.

I just thought of something... I did not turn the set on for a few months after I restored it, and it now had a height problem the last time I powered it up. Maybe I need to check for another bad resistor in that box.

[Geist]

Hi All;
Thank You Chris, That for now is exactly what I am going to do.. And see how that holds up.. Thank You for your response..
THANK YOU Marty