[Whitese]

Telefunken S81, which has the mods as listed here:
TC: Telefunken S81 S82 S80 integrated tube amp - www.tube-classics.de

My amp is driving some also made in Germany Clearaudio Delta monitors...Great combo...Not about volume, but the Lute music comes out beautifully...Next I will sell something so I can try some Fostex or Omega or Diatone full range monitors..(or Audio Nirvana or Lowther, etc...)

[ohenry]

Very cool, I have never seen one.  Looks like it has el-84's?

I couldn't get your link to work, is this it?

http://www.tube-classics.de/TC/GermanTubeHifi/Integamps/Telefunken%20S81/S81.htm

[FullRangeMan]

What a gem, I have never seem a 150V mains

[ohenry]

Also, how was the 50Hz power supply modified (assuming you have 120v/60Hz).  Just curious if I ever have a shot at getting one of these. 

[FullRangeMan]

Also, how was the 50Hz power supply modified (assuming you have 120v/60Hz).  Just curious if I ever have a shot at getting one of these. 

The 50Hz cycling rarely is a prob w/tube amps.