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Gene A lot of this is just Personal Preference and Everybody is right in their own way. The main thing is to make sure its wired correctly and than neatly and isolated if possible. So just hang in their! I'm routing for you!;););) (I know the feeling) Good Luck Steve

Greg Sounds Like a Plan. Very good Idea I am also inclined to install the DC speaker protection relay rather than use my speakers as a test (still might want to use 2x 8 ohm resistor as your speakers) Gook luck Steve

Yes but you have to change the R1 and R2 , Looks like you need a 1.8k 5w for the LM356. Might want to add Sockets for the Op-amps.

Might want to take off that Ground wire to the Transformer

What Value are the Sand resistors? should be 7.5k What was the description for the amp working or not? The Diodes look funny (might want to check all of them)

General checks Double check that OP-amp they should be the same, you have a LM351 , what's that other one? check Zennor diodes for +15vdc and -15vdc check voltage between each speaker terminals + and - (LT and RT speaker outupts) check DC voltage after fuses or backplane. Might want to run...

Mine are low also , I stop and looked at them thinking these are to low than I did find a lot of pic's of boards w them mounted like I did (But Lower than they should be. (any other components that also should be mounted higher?) So Joe this would be hard to troubleshoot, I'm guessing it cause...

Thanks I have a bunch of them but I might order more since their so cheap Now (I always like to have a lot stock) I installed 2- of them last night and w shorter leads like you said. seem to run better. so since were taking about sharpie marker, I'm marking all the P-strap w the 2n5088...

I have some NTE192A and stock 2N3403 , 2N5088, BD139 so the 2N5088 is the best for less noise and longer wires w the Original backplane?

Luckily Joe has a lot of stock! :)

Sounds Good and a Good Idea. I will add some to my Cap kits Update.

Ok, Joe so what the next Question? Oh,,,,, How much and is it available yet?

Looks good Joe I like the Bridge Rectifiers Board , were Can I find one?

Its harder to find the LM351 (which are better)

Did you get my PM?

Might not want to take to much stock into the Drawing since they had a lot of different ones out their. Are you using the LM351 Op-Amp? If Yes Here is the update Service Bulletin for the LM351

Yes and has a Bigger Heavier Transformer and more output Transistors so when you drop it on your foot the 400II hurts a lot but the 700II break your foot! LOL

R1 and R2 are 7.5k 5watt mouser Part# https://www.mouser.com/ProductDetail/660-MOS5C752J R101 and r201 are 7.5k I used 3w https://www.mouser.com/ProductDetail/660-MOS3C752J I use the Metal Oxide Film Resistors the other resistors if go want go to Parts express they have a clearance sale 1/2watt...

What about twisted them together?

Not really, I very impressed w you taking the wires off! (brave) I been in the Machine Building world forever and some times you have to think outside the box.