I Am sorry for my ignorance, but what are the string resistors?  Tried to research that, and can't find anything I can relate to my build.

OK, all my tone knobs work now. I scraped the chassis where the pots are, I tapped and moved wires with a chop stick (ears are ringing still) to no avail.  Pin 7 and are not touching. 

Here are my preamp voltages - where is says Jeff, thats me.
I put NIK in here for reference (his is first)

My OD voltage is wacky?

Tube   Type           Pin1      Pin3                  Pin6   Pin7   Pin8
                           
V1   NIK        191      1.7         200      1.6
   Jeff           140      1.5         141      1.4
V2   NIK        200      1.7         201      1.7
   Jeff           175      1.8         191      1.7
   Jeff OD   188      1.9         300   -8.3   56

V3   NIK       298      56         289      56
            Jeff       282      28         267      56

I guess my next step is to try and see if anything is touching on the backsides of the boards? 

Ditto. I stumbled onto the site after seeing an ots for sale near me on ebay.  the guywho runs it is bas is a good guy and is essentially a usa distributor.  he helped talk me through options.  He also is a killer guitar player and gigs with ats is a santana tribute band in my area.

Todd, the footswitch works, lights and everything. I understand the PAB ( I had the relay in their backwards) finally.
I am pretty confident that my main problem is some place isolated in the Overdrive Channel, but i have been staring at it so long, i probably missed something.

Here are the pictures of my attempt to clean up the wiring (thanks gregg/sduck) - especially the coax and spacing on v1, v2 and the pots on front.  I tried to re-solder a lot of stuff.

I tried just jumping the OD trim and it didn't do anything to alter the crazy noise.  I rewired and dressed the coax from the relay pcb....  Should i jump something else to try an isolate where my problem is?  How do you guys debug these things?

Running out of options, but I am obviously learning a lot.  I am going to gig this thing outdoors this weekend sitting on top of my blues deville combo.  Burn her in.   I will only use the clean channel (like I do with my fender).  If it fails, I will just plug the deville in.  I would sure like to get this overdrive channel figured out.  Maybe I should have started with an easier maiden voyage in amp building - I almost went Dizzy30 instead of this...

I recorded my amp to show you guys what is happening.

Also I rewired half the amp, routed every coaxial and most wires on the side of the pots.

The good: clean is awesome, and loud, master volume works, deep switch gets me a cool crunch that is responsive to the volume control.

The bad: no tone controls working, overdrive channel sounds terrible or buzzes/squeals.

I am starting to wonder if I have a bad relay or a damaged component, like my switch?

I'll post v2 pics in a minute....

I don't know if this helps, but the signal is fine when I switch to od when the od trim or levels are very low. As I turn up Overdrive level it starts to squeal very high pitch.  Independently If I turn up the trim it is loud hum, ala motor boat.  Is there a voltage to check? Clean is very nice, and I can get great crunch with manipulating the channel.

My clean signal sounds great with less hum than my fender or Marshall... Don't know if that helps.  But i am open to your suggestions.  So what would you rewire first?  What areas should I focus on?  Where are my biggest problem areas?

I have received a lot of help from this forum.  After much pain and heartache (as well as some stupid mistakes), my OTS is up and running on the clean channel.  However the overdrive squeals in a really bad way and when the OD trim gets turned up it gets worse...  

Another forum member thought it would be appropriate to start a new thread and post pictures of the guts so that responses could be easily found for the next guy who runs into this problem.

This is my first amp build, as you will see in the pictures.

Thanks in advance for all your help!!!  

Man, thanks for all the help.  Seriously was worried for a bit. 

Well here is the story. I found I wired V1 wrong and probably fried my v1 and v2 tubes.  I fixed that and still had huge buzz.  Pulled the input on a whim and found I didn't wire a ground!!! Oooooppps...

Ok, so now my amp works, at least clean, which is very fendery.  But my lead channel screams in a bad way.  How do i troubleshoot the overdrive?  Do I have the relays wrong? I don't know how to read these things. Any help would be great.  Should I move this to a different thread? Getting close... At least to the point I can start tweaking to get killer tone.

I am getting sound out of the Power Amp Input with my guitar - low volume but still real and clear.

here are all my voltages
    Pin 1, Pin 3, Pin 6, Pin 8
V1 170, 1.8,    271,    0
V2 203, 2.1,    324,    0
V3 304, 60,    286,    61

    Pin 3,  4,     5,   6,       8
V4, 470, 470, -34, 460    26
V5, 470, 470, -34, 460   26

obviously my preamp is jacked... where do I start?  rebuild???

Thanks everyone!  Well, the thing fires up and doesn't blow fuses, and didnt catch on fire!  But.... it buzzes really loud and squeals even with volume all the way down. 

So off to research the next forums.  Any tips??? Or forums.

Thanks everyone.  I am still not there yet. I need to get more specific as I am not technically proficient enough to understand the feedback on the secondary leads - is there polarity on the 60 and 6V leads?  Do the 6.3V leads attach as shown?

Please see attached picture.  I drew lines from the Mercury Magnetic transformer (right) to the ceriatone schematic (left) for the secondary leads in the colors that the leads are from Mercury Magnetics.

Is this right??? I am so close but afraid to wire this wrong.

well, reading this forum convinced me to build an ots, but now im stuck trying to.figure out the mercury magnetics power tranny wiring for USA. So im begging for help. can anyone with a mercury mag tranny post a picture of the innards and msg me?  Im stuck on the dual primary concept, and th 6v leads.  No idea what they are doing.  I would like to fire this sucker up and play some star spangled banner on the 4th to burn it in!!!!   Im so close, but at a loss since i only read schematics and solder, but dont understand why it works yet. This is my first build. I got confident after sucessfully modding my fender amp without killing myself and setting it on fire.

Im midway on my 50watt ots build and need ot, pt, and choke.  Anybody selling?  I can paypal today.