Eurika, even a small (air gaped?) transformer can be used on the Pleiades 2N3053 single transistor power amplifier

At your risk, including all other posts, my appologies if any of all these public domain posts are or are interpreted as being offending. A small Grundig BV 9054-339.02 output transformer has been used at such low power consumption or power output much less than 1 Watt and the sound is still big with deep bass, great mid , great delicate, extended treble as expected from a class A (electrons flowing all the time) amplifier. Signal path: CD single Crush - Jennifer Page - Sony CD Walkman line out - Pleiades 2N3053 single transistor power amplifier with small Grundig output transformer, Vb=24V - Fostex FE127E speaker in Pioneer CS-353 cabinet facing ceiling in large living room - listener at about 2 meters in any direction.