On top of the Back to the Future car radio sit an aluminium heatsink and PCB
They are the measurements of the heatsink
The PCB fills the entire length of the radio and had 2 holes in the front
The heatsink and PCB have multiple compentents attached:
1 Honeywell 3001U (with red wires)
2 2N3772 Tesla Transistors
2 black resistors (undefined)
1 smaller resistor (undefined
We recreated a movie accurate radio heatsink out of extruded aluminium :
