I'm thinking of these ICs: https://www.reddit.com/r/AskElectronics/comments/a8af60/can_you_tell_me_what_the_history_of_the_8_sound/ https://www.reddit.com/r/Ask

I'm thinking of these ICs: https://www.reddit.com/r/AskElectronics/comments/a8af60/can_you_tell_me_what_the_history_of_the_8_sound/ https://www.reddit.com/r/AskElectronics/comments/a8af60/can_... One of the more famous toys using it (in blob form) is the Executor/Echo Keyller keychain: https://youtu.be/20W6AJuMjEk https://youtu.be/20W6AJuMjEk