The Greatest Sound Card Ever? The iconic Sound Blaster 16!

I always wanted to have a Sound Blaster 16! Finally, 30 years later, I have one! It comes from the scrapyard and doesn't work properly, but hey! It is a Sound Blaster 16! The cards suffers from excessive noise pollution. I hope we will be able to identify the problem and fix it because the card is unusable in its current condition!

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▬▬▬▬ Timestamps ▬▬▬▬▬▬▬▬▬▬▬▬▬▬
00:00 The Sound Blaster 16
02:32 MC3403 Opamps
04:41 Sound samples
07:28 Oscilloscope probing
09:37 PCBWay
10:11 Swapping Opamps
13:45 Testing Opamp swap
14:30 Remove the TEA2025 amplifier
17:03 Measuring the voltage regulators
18:39 Testing the 5v regulator
25:58 Installing new regulator
29:08 Testing