29:25

Akai AM-U210 Amplifier - Bench Repair

31:40

Reparación de amplificador Technics SU-3500

52:27

Sony TA-F550ES 1990s Hifi Amplifier Repair

22:57

SONY TA 1150 Integrated Stereo Amplifier Restoration // Restore And Repair Broken 120w Amplifier

54:04

Restoring Power Amplifier from 80's Akai AM-U2 & rebuilding OpAmp Toshiba TA7136