NAD3020 Vintage Amplifier Re-Repair (after I blew it up...)

I'm revisiting the NAD 3020 Series 20 Amplifier (late 70s vintage) that I worked on a while back. Unfortunately, I managed to completely short out the power transistors so there's some troubleshooting and repairing to be done in this video. My first video about this amplifier: https://youtu.be/8ERQwC5pGB4 My final video about this amp: https://youtu.be/4i9OcI-xHko NAD 3020 Service Manual (for this older model): https://elektrotanya.com/nad_3020_sm.pdf/download.html Dim bulb tester info: https://antiqueradio.org/dimbulb.htm Joystick repair video: https://youtu.be/LxYWcVOa8IY Component Tester*: US: https://amzn.to/2SN4XBu UK: https://amzn.to/2Rg7L9S DE: https://amzn.to/3fEhGzn UHU Plast Special plastic glue*: UK: https://amzn.to/3tik1oz DE: https://amzn.to/3cqEjpU TIME STAMPS: 0:00 Introduction 1:30 Current Status of the NAD 3:49 Checking for shorted Transistors 5:47 Desoldering Driver Transistors 6:54 Testing Driver Transistors 7:56 Checking for other Shorts 8:20 Replacement Transistors 10:02 Fitting new Transistors 11:12 Testing with Dim Bulb Tester 15:05 Hooking up Speakers 19:36 Plastic Trouble 23:18 Thank you & Good Night ----------------------------------------­------ MUSIC by FOCUS 10 https://focus10music.bandcamp.com EQUIPMENT AND TOOLS I USE: https://kit.co/janbeta * TWITTER: https://twitter.com/thejanbeta PATREON: https://patreon.com/janbeta WEBSITE: https://www.janbeta.net TWITCH: https://www.twitch.tv/thejanbeta YT CHANNEL MEMBERSHIP: https://www.youtube.com/channel/UCftUpOO4h9EgH0eDOZtjzcA/join Thanks for watching! * Stuff marked with "*" contains affiliate links. You don't pay anything extra and I get a little commission from everything you buy through the links (even if you buy something different there). #JanBeta #NAD3020 #VintageAudio