Yaqin CD3 Tube Buffer
Great tube buffer I won at the last Head-Fi auction. Well, actually I didn't win, but I immediately managed to buy it off the guy who did win.
Anyway, perfect for adding power to your system, adjusting impedance mismatches, or just cutting a little of the "digital" sound from your system. I have the crappy tubes that came with it, but am including two vintage NOS RCAs I picked up for $35.
The photos show the unit as I have it...