Behind the driverseat and next to the Flux Capacitor you will find 2 gold heatsinks Both heatsinks have 2 WestingHouse 2n2124 Transistors and 2 stud power rectifier diodes.: The PCB fills the entire length of the radio and had 2 holes in the front Below is the gold heatsink that we have made out of extruded aluminium and then gold anodized The heatsinks seem to come of (or at least close to a) Contraves PC0598B Power board (Thanks to Michael Lerra for the pics) Quick view Cannon Big Elbow 3108B32 $59.00 Add to cart Quick view Cannon Small Elbow 3108B20 $29.00 Add to cart