DR #70 - It Lives Again - Proton D1200 Repair & Testing

In this video, I document the repair and testing of a Proton D1200 amplifier. Specifically, an event caused several components in the right channel to fail, some catastrophically. After identifying, ordering, and installing suitable replacements, this family heirloom is ready to play again.

Parts Used:

Q620, Q624, Q628, Q632 - 2SC5200N(S1ES)-ND
Q622, Q626, Q630, Q634 - 2SA1943N(S1ES)-ND
Q612 - TTC004BQ-ND
Q616 - MJE15032GOS-ND
Q618 - MJE15033GOS-ND
R640 - 56-PR01000107500JR500CT-ND
VR603, VR604 - 3296Y-1-102LF