UTC tube amp power transformer 5V 10A and output 105V ?0.2A

size about 3 1/2 x 4 x height   4 1/4 plus height of terminals

also FYI, the "10A" is 50-60 Hz,

a transformer company said the rated amps is at 50Hz, 60Hz is much more efficient, usually good for 20% more or about 12 amps in this case