salvaged "delay lines" from Old OLD VCR/receiver-good for fx???

[loss1234]

hey there

in the last few months I salvaged an early 1980's VCR and while opening it up i found 2 big plastic boxes labelled

"kss DELAY LINE ms-21" and KSS delay line MS-15"


can i use these for delay or phase shift effect?

also,



I found an old kenwood eq/"time delay" (kenwood ge-1000) on the street.

its got 2 sony766 chips

it claims on the box that it has BBD chips to create "spatial" and delay effects.

the markings were

sony 766 103 1g

anyone know where i can get a datasheet?

anyone else encounter old eq's that have bbds in them? "time delay" sounds so promising as does delay line but without data, they are useless as rocks

thanks

[Paul Perry (Frostwave)]

I'm afraid they are only microseconds long. Found this explanation:

Piezoelectric delay lines
A widespread use of piezoelectric delays was in European television sets. The European PAL standard for color broadcasts compares the signal from two subsequent lines in order to avoid color shifting due to small phase shifts. By comparing two lines, one inverted, the shifting is averaged out and returns a signal more closely matching the original even under interference. In order to compare the two lines, a piezo delay tuned to the timing of the lines, 64 µs, is inserted in the signal path. The delay unit is shaped to "fold" the beam multiple times through the crystal, greatly reducing its length and producing a small square-ish device.

[dmk]

great explanation

i've always wondered what they were for

[puretube]

http://www.diystompboxes.com/smfforum/index.php?topic=39791.0

that Kenw**d spatial thingy >might< work with some kinda (relabelled?) BBD, though,
but might as well just work with some Allpass kinda stuff like found in the TDA3810,
or in one of those obscure R*hm chippies...

[loss1234]

puretube-i am sure it uses BBD's as the case of the unit has a text description that explains something like "spatial effects using the new technology of bucket brigade devices"

vfunny that they go on and describe a bbd as a crucial feature

anyway, no one seems to know anything about that unit

thanks