[sdiy] 20ms delay? analog allpass filter?

[music at atypical.net]

https://patents.google.com/patent/US2423306

On 2023-02-06 22:18, Neil Harper via Synth-diy wrote:
> hey everyone,
> I've been messing around with some digital stuff, where it's really 
> easy to make delays to do accurate karplus-strong type sounds for 
> example.
>
> Anyways, it got me wondering if there's any analog equivalent? Let's 
> say I want a 20ms delay, is that in the realm of requiring a dedicated 
> IC to do the delay, or is that possible with bog standard electronic 
> parts like opamps and capacitors? 2
>
>
>