How To Find a Transistor Replacement

Sometimes you need to replace an old transistor with a modern equivalent. Let's figure out exactly what transistor we need for the clock circuit in the Amstrad CPC 464 while learning some interesting things about transistors along the way.

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Chapters: 00:00 Intro 01:11 Transistors 04:14 Clock circuit 06:54 Simple circuit 09:09 Faster! 14:16 Real signal 16:50 Testing in board 19:30 Amstrad circuit 20:47 Conclusion

Links: Online simulator https://tinyurl.com/y6vfkjbw The Art of Electronics 2nd Edition https://www.pearl-hifi.com/06_Lit_Archive/02_PEARL_Arch/Vol_16/Sec_51/4420_The_Art_of_Electronics.pdf

Music tracks: Funky Stars by McKlain https://mcklain.bandcamp.com/track/funky-stars-amstrad-cpc-true-8bit-version Battro OST by McKlain https://mcklain.bandcamp.com/track/battro-ost More awesome music by McKlain: https://www.mcklain.com

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