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suddenly wondering how the hell analog delay effects work. i know from computing that they used to be something called “delay lines” for memory. i wonder if…
yup, same technology! also used for PAL colour televisions (it's called PAL because of the phase alternating line, there's some error-correction trick where it delays the previous line and they cancel or something)
dude growing older rocks. all those little bits of useless knowledge form beautiful connections in your head
thanks to kind friends and followers i have found out about the “bucket-brigade delay” which is fascinating because it is basically an integrated circuit filled with tiny capacitors and so it has discrete-time samples, like something digital, but it's still analog
i wonder now if those tiny analog audio recording chips that used to be used in toys, operate via the same principle. i can't think of any other way they could work and be that cheap, so i assume it must be.
@hikari researching this you often find the phrase "bucket brigade chip" which is very evocative.
Also worth finding video of the inside of a Roland space echo in operation