Like my whole system, this amp is currently under construction. The last version (Version III) has been revisited and many changes have been made. I now use the S6 15W DHT as driver, coupled on a amorpheous Single-ended output transformer of 10k:2k. The heather supply is current regulated. Volume control has been changed to a 4 deck 23 steps ladder attenuator with matched Allen-Bradley resistors. All voltages already have been standardized for my soon to come battery powersupply.

Sound is incredible good, the best Schalmei there was ever build! It is now build on a piece of wood. More (pictures, schematics, etc) to come right after I have build it definitive (somewhere this year).