50 watt tube amp EL34 output transformer 4KCT to 4 8 16

Description

For sale is the bigger laydown output trans, but to the left is a 8KCT to 8 ohm 25W high-fi 35W guitar output for size and voltage comparison.
For sale is this tested tube amp output transformer appears to be 4KCT to 4, 8, 15-16, 150, and 500 ohm, probably from a hi-fi 50 watt EL34 PA amp.
if i compare to new new production 8KCT to 8, with 120VAC on plate and center tap, i get output voltage of 8V.
on the bigger trans for sale, with 120V on plate and CT, i get 5, 8, and 12V out, which would be like 8K to 4, 8, and 16 ohms, and two higher voltage outputs
for 150 and 500 ohm.  The primary is 100 ohms CT, almost exactly half the primary of the 35W 8KCT to 8.    Primary can be used for tubes for 4KCT to 8KCT.
In case the label falls off, primary pins 7, 9, 10(CT for B+).  Secondary common top left in picture, then outputs 4, 8, 15-16.