Both Birgir and I have wanted one of these for quite a while, and they never seem to show up.
So with a little help from one of the members here we were able to reverse engineer this one.
http://gilmore.chem....rn.edu/ksa5.pdf
http://gilmore.chem....rn.edu/ksa5.jpg
still have work to do on the power supply.
All the parts are still available, but identical and compatible parts also available.
mpsw06 and mpsw56 and lsk389
I think this one is fairly cheap to do. And easy to assemble.
Single channel is 10 x 3.65 inches.
Single ended not really a HE6 killer, but balanced, a HE6 heavyweight for sure.
If you replace the servo opamp with opa445, then you can go up to +/-35v rails.
Then its definitely a HE6 killer single ended.
picture of the original
http://gilmore.chem....du/ksa5orig.jpg
single ended with +/-21 power supplies, it does 10 vrms into 4 ohms or more.
balanced 20 vrms into 8 ohms or more.
single ended with +/-35 power supplies, it does 16 vrms into 4 ohms or more.
balanced 32 vrms into 8 ohms or more.