Rare Ampeg Portaflex B-15-N Bass Amplifier - Major Repair

Dive into the second part of a three-part video series detailing the major repair of a rare Ampeg Portaflex B-15-N Bass Amplifier. Follow along as the technician installs the new power transformer and capacitors, navigating challenges such as missing mounting hardware and the need for precise wiring based on schematics. Observe the meticulous process of replacing the quad electrolytic capacitor, installing new resistors, and adding the missing capacitor to the 6L6 finals. Learn about the importance of proper grounding and witness the careful testing procedures, including shorting tests and voltage measurements using a Variac. Gain insights into troubleshooting techniques as the technician encounters and resolves issues with the rectifier and standby circuit. This in-depth repair video provides valuable knowledge for those interested in vintage audio equipment restoration and electronics repair.