Today I am working on a Fender 5E8 “Twin.” The one with dual rectifiers. Someone, in the amps long past, had removed the rectifier tubes and replaced them with solid state diodes. There is nothing wrong with doing that in general, but, in this specific case it resulted in power supply voltages that were too high for the typical 500V maximum voltage rating of the power supply capacitors. So, I removed the diode rectifier and put-in two nice NOS rectiifer tubes to restore the amp to its original design. This particular amp chassis was re-housed (in the past) in a Tweed Bassman-like 4×10 cabinet. So, it looks, at first glance like a 4×10 Tweed Bassman, but, it is not!