Hagström PA-200 - PA Amplifier Troubleshooting and Repair

Troubleshooting and repair of the amplifier of a swedish Hagström PA-200 public address system from the 60s.

Music:
Title: Variatio 23 a 2 Clav.
Album: J​.​S. Bach: "Open" Goldberg Variations, BWV 988 (Piano)
Composer: Johann Sebastian Bach
Performer: Kimiko Ishizaka
Release date: May 28, 2012
Source: https://kimikoishizaka.bandcamp.com/album/j-s-bach-open-goldberg-variations-bwv-988-pianoariatio 23 a 2 Clav.
License: CC0 1.0 (https://creativecommons.org/publicdomain/zero/1.0/deed.en)

00:00 Initial Analysis
02:58 Troubleshooting
04:45 Repair
08:28 Testing
09:12 Reassembly
10:51 Demonstration