These amplifiers are special in that they do not have output transformers.
They are powered by three toroidal transformers on each bloc.
Here is a good web page on them http://www.troelsgravesen.dk/T16OTL.htm
They were designed by Bruce Rosenblit the owner of Transcendent Sound. I will supply the original build instructions in PDF form.
They feature 12AX7, 12AU7 and 12AT7 driver tubes, one of each in each channel and 16 6C19P per channel giving 16 watts into 8 ohms per channel.
The amps will come with a full set of tubes of all types and an additional 66 backup 6C19P's plus another 31 I just found! - see photographs.
The assembly is of a high standard and the sound is wonderful.
They weigh 10kg each and measure 45 x 23 x 13cm each. I am prepared to post the box of tubes separately for free.
Pickup in Canberra is possible as is audition