OK, dissection is complete.
I took off some of the metal on the screw hole retainer thingies
so I could pop the plate without breakage:
http://vacuumbrain.com/The_Lab/TA/UTC/A-48/a48_2.jpg
This is the first A series UTC I have taken apart that had another can inside.
Wow. Look at all the pretty wires.
I wonder where they go.
http://vacuumbrain.com/The_Lab/TA/UTC/A-48/a48_c.jpg
A little black road tar holds the can in.
A little brown wax inside the shield can.
http://vacuumbrain.com/The_Lab/TA/UTC/A-48/a48_d.jpg
Here comes the whold enchillada:
http://vacuumbrain.com/The_Lab/TA/UTC/A-48/a48_e.jpg
Weird. One transformer on top of another.
So that's how they breed!
http://vacuumbrain.com/The_Lab/TA/UTC/A-48/a48_g.jpg
So mu can, fish paper, two xfmr's and the outer can.
Parts is parts.
http://vacuumbrain.com/The_Lab/TA/UTC/A-48/a48_h.jpg
Bobbin wound, 24-25 EE square stack of 80 Ni:
Tri-filar wound, 0.003 - 41 ga. wire, as many turns as you can get, probably about 5 or 600.
http://vacuumbrain.com/The_Lab/TA/UTC/A-48/a48_r.jpg
Notice the data jpg at the first post.
The starts are out of phase with eqach other.
This is the nature of the hybrid circuit.
So if you buy an A-48, and try to use it like a 600:600, you will be dis-appointed unless you know how to wire it.
There are two seperate transformers in that can, and they both are shown on the silkscreen wired out of phase.
Note that with two transformers in the same can, core space is cut in half, so this guy only has a 10 dbm rating.
Saturates pretty quickly, but nice B-H.
There ya go.
Every xfmr I open up is different, this one did not dis-appoint.
Thanks to Pmroz for the donation!
:thumb: