LM317T Voltage Regulator with Pass Transistor

Magnum S45 with blown 2SB754 output supply regulator, common symptoms are loss of AM audio and swing and loss of variable power adjustment. The 2SB754 which was made by Toshiba is now obsolete but can be replaced with the 2SB817 which is made by Sanyo. Early version using 2SC1969's in parallel for high output.



http://www.youtube.com/watch?v=sjrfLjbUZ2I&hl=en