[morzh]

Today, after having installed the antenna coil back, I took the speaker out of the case to hook it up, but decided to check the output transformer.
Yep, you got it! It was open. Both halves of the primary.

And to extract this one.....not sure why, but RCA of the period loved tabs. And very thick ones, and, mind you, not aluminum, but steel. Capacitor boxes....and, yes, transformers.

This one has 3 tabs, all about 1mm steel. That means - very stiff. Hard to un-bend. And the un-bending has to be performed inside the basket within 1/2"  from the paper cone.

The tabs.

   
   

The tools I had to use:

   

The xfmr out:

   

I took long narrow chiesel, that allowed a good angle and wedged it under the single tab, taping on it with the pliers (yes, I used them only as a hammer), eventually working it in. I unbent one tab.
Then I did this to another tab on the opposite side, that had two tabs facing each other. Then I finished the job using a long large blunt flat screwdriver. Then I started unbending the second tab and finished it rocking the transformer.

I was able to extract it without damaging the cone.

Now I need to replace it. I am sure a Hammond will still run me cheaper than rewinding the original. Considering it's been a month since our NJ company that said they did custom jobs (I contacted them about that large inductor) has not come back to me, after nice long conversation, I think it might not be in the cards for me to use them.
So, I will try to get a Hammond that would fit the application and be able to be mount in place of the original one.


The voice coil resistance is about 4 Ohms.