[sdiy] help with strange BBD chips (sony) (Kenwood time delay)

[Mike]

> Your reference to the VCR could well be video delays for some purpose.
> Optical one line delays were
> used for error correction and are usually 2 transducers and a quartz
> block hence the physical size.
>

The one's used for PAL TV were typically 64uS (1 line time),  I don't think
NTSC used error correction, (hence the appellation "Never Twice Same
Colour).

You'd need rather a lot to do anything with audio.

Mike