I just noticed that Eric Barbour makes a TM-4 amplifier, and my interest is piqued. I had been thinking that Eric would probably make a great amplifier and/or kit, given his engineering expertise and experience with tubes and the tube industry. Lo and behold, he has one available already. Guess I should have asked; Just hadn't gotten around to it but it was in the back of my mind.So Eric, please tell us more about it. Is this the same TM-4 listed on the Metasonix page at www.VacuumTube.com?