I found this site. The prices are pretty good. I am ordering a 5F4 Super chassis. THe Fend 5F4 is one of my favorite harp amps. It has separate tubes for each of the preamp channels so you can put a 12AU7 in one and a 12AX7 in the other and have hot and cool channels to plug into.CeriaTone.Com - DIY Guitar Tube Amp
