10W Duophonic M800 + Corona

This one sold but avail for custom build.  2 Channel.  M800 and a Corona channel.  I will give 3 guesses as to what the M800 stands for.  10+ watts from a single EL34.  No loop.  Watts control takes the wattage WAY down.  Nice big polypropylene in oil cap in the power supply.  US$699 email me for shipping cost.