Jan Beta | NAD3020 Vintage Amplifier Re-Repair (after I blew it up...) @JanBeta | Uploaded June 2021 | Updated October 2024, 7 hours ago.
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: youtu.be/8ERQwC5pGB4
My final video about this amp: youtu.be/4i9OcI-xHko

NAD 3020 Service Manual (for this older model): elektrotanya.com/nad_3020_sm.pdf/download.html

Dim bulb tester info: antiqueradio.org/dimbulb.htm

Joystick repair video: youtu.be/LxYWcVOa8IY

Component Tester*:
US: amzn.to/2SN4XBu
UK: amzn.to/2Rg7L9S
DE: amzn.to/3fEhGzn

UHU Plast Special plastic glue*:
UK: amzn.to/3tik1oz
DE: 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

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#JanBeta #NAD3020 #VintageAudio