Fulltone Tube Tape Echo - Manual (Page 16)

Page 14
Converting Transformer to Operate at 220/240 Voltage
Warning! This procedure is ONLY to be done by an experienced Technician.
Serious injury or death and/or irreparable damage to the unit may occur if done improperly.
Note: the only changes are to the White and Brown Wires…all other wires are left alone