Adcom GFA-5002 increase ClassA bias on purpose

Here are some pictures of it, I wish I had the specs but they are not anywhere in the service manual.

The inscriptions read:
TT345-U
CB-3514-C 3


Is there a way to calculate its specs or bypass this circuit, perhaps replace it with a switch?

Adjustments.jpg

Adjustments.jpg

Adjustments.jpg

Adjustments.jpg


Thanks Again!
 
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Thank You Everyone who chimed in, after contacting every ADCOM part source and being told that the part wasn't available I got myself an extra bucket of patience and I was able to fix the transformer.

Now this little amp is back to life.