Selmer Truvoice TV8 1947 Combo with 8″ Speaker Selmer Truvoice 8 Watt 1947 amp. In to make safe and get working.. Volume knob missing.. Made by several people.. 23rd July 1947 Speaker looks original 17th July.. made a few days before the amp was compled KTZ63 preamp, KT33 Power amp U31 diode rectifier No mains transformer just takes supply fromt he mains direct onto the rectifier diode.. or via some wirewound resistors.. Fairly simple inside Schematic