Here is a pair of custom hand rewinded output transformers using core from audio output BEAG AEG transformers (made in Hungary) for single ended amplifiers.
5 kOm: 8&16 Ohm 70mA, up to 10 watts output.
The weight is 2.0 Kg each.
100x100x30mm core size. Special core (look at the pictures) with air gap.
The trannies were tested in my SET YO-186 amplifier and BBC LS3/5A speakers, they gave out very good sound with
solid lows and transparent mids and highs.
Really high end output transformers, very rare iron with air gap.

ASK ALL YOUR QUESTIONS BEFORE YOUR BID AND GOOD LUCK!