Designing a white, pink & blue noise generator from scratch

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In this episode, we're torturing an NPN transistor into creating some white noise – which we'll then filter to also get some pink and blue noise. If you want to build along, here's the bill of materials:

1x TL074 quad op amp
1x BC548 transistor
1x 1M resistor
6x 100k resistor
1x 51k resistor
1x 22k resistor
2x 10k resistor
1x 2k resistor
3x 1k resistor
1x 680Ω resistor
1x 1µF foil capacitor
1x 33nF foil capacitor
1x 3.3nF foil capacitor
3x 1nF capacitor
1x 330pF foil capacitor

Chapters
00:00 Intro & what is noise?
03:00 Transistor breakdown & white noise
10:51 Shelf filters & pink noise
19:09 Limited high pass & blue noise