My 124# is up and running!!!!! A few issues?

[echo44]

more ps pics

[Reeltarded]

At some point between those first two nodes you are missing a LOT of dropping, looks like.

[echo44]

you mean between B+1 and B+2?

[echo44]

pic B4 and B5

[rogb]

Ok so I went and measured the B+ to find out why the tube plate voltage on the 12ax7 are so high

B1 = 473
B2 = 470
B3 = 466
B4= 406
B5=400

wall voltage in the amp = 122 volts AC

will post some pics of my power supply soon

Recheck the wiring of PS board to the layout, remove and meter the dropping resistors, make sure you haven't got a (say) 2k2 and a 22k in the wrong positions.
Resolder making sure you have clean well flowed eyelets.

[Structo]

Yes, if you don't have the FET installed you need to install a 150K 3W resistor
at the end of the string.
So from the 2K2 on the sidewall to ground.
This will drop the voltages on B3+ and B4+

My amp is a high plate but my B3+ is 314v and B4+ is 307v.

Might want to tidy up your lead dress while you are in there.
No need for pretty right angle bends but you don't want a lot of excess wire
as it will make it noisy.

[echo44]

I do have an FET installed but I did notice when I plugged into this there was a questionable short could have also been the tube cutout?

[Structo]

The FET still goes into V1.

If you have the FET hooked up and your voltages are too high then you may want to try some different tubes but your B3+ and B4+ are too high.

Try a 24K-28K resistor in place of the 22K in your dropping string.

[echo44]

Ok to rule out the FET board as the cause there is already a150k resister connected to B+ on the FET board so I grounded the other side of that resister directly to the chassis had no affect on voltage. I also double checked the resistance values and even removed the 22k an 2.2k at the beginning of the power board and replaced them with no luck

[Reeltarded]

No change at all?

[echo44]

nothing actually now the plate on 6l6 reads 460
also notice cant bring bias down below 40?
could the problem be a bad choke?

[echo44]

So here is where I am at after 4 hours tonight.

resoldered all the power supply connections and changed the resitors,
rechecked that they are the right value. This had no effect.
Can the abnormal voltage be related to the choke?
I bought a 3 henry choke from Mercury?
Isn't the choke have the effect of a resistor?

So than I took the 22K cap out and replaced it with a 24 k
also tried 27k this had very little effect. I than tried a 150k
this reduced my plate voltage down to 110v. I could leave it at that and join
an elevator type music band . I did try the OD channel which started this whole investigation and even at low voltages I was hearing the same anomaly with the sound garbled sounds like a tremelo effect.

So after that I took out the 150k resistor. I didn't have any values over 27k at 2 watts. So I took two 22k 2watt resistors and hooked them up in series.

here is the result

V1 1=191 , 2= 005 3= 1.2 6=195 7=0 8=1.2
V2 1=275, 2=0 3= 3.68 4= 275 5=0 6=.001
V3 1= 303, 2=0 3= 3.68 4= 275 5=0 6=.001

So the two 22k in series brings V1 closer however V2 is still running hot so how could I lower V2 with out affecting V1? Also could this all still be related to the choke?

I was thinking of changing the 2 22k in series for 2 24K in series to get a little closer? Is it ok to run the resistors in series each has a wattage of 2

Finally I realize it is not the high voltage on V2 messing up the OD channel as it was stilled messed up with the plate voltage dropped way down.
I also notice regardless of where I set the Ratio or level the volume drops down when I engage the OD channel does this help anyone to figure out where I am going wrong I checked continuity of all the connections and they seem right. Could this be related to the pots wired in reverse? I didn't think it should matter other than the knobs working in reverse?
The other issue is I am not sure the bright switch is working . I will post a close up. On a positive note the regular channel now sound awesome!!!

[bcook]

On V2, measure the resistance from each cathode to the chassis with the power off. You should have around 1500 ohms.

The voltages on V3 don't look right if that's the phase inverter. Did you get some of the numbers transposed?

[CHIP]

It would really help if you posted some pics of the whole amp. Then maybe some of us could narrow down your problem.

[ToneMerc]

You have so many issues to address here....end to end.

My advice honestly, would be to gut it and start over.

Dont't be offended, but a man's got to know his limitations.

TM