[sdiy] Analog Delay Lines (was) [common acronyms?]

[Ken Stone]

I have (and have had for many years) a nice digital delay. I also have a
tape loop by Melos, though am missing the tape at the moment. Still, I waste
hours messing around with home made tape delays...  I guess that's what DIY
is about... The satisfaction of doing it yourself.

Ken

>I've always wanted to do a delay with a phosphor coated disk...
>and use optical recording.
>
>I'd use a "flood light" for erase... and maybe a laser or led to write
>and a photodiode to read.  I'd have to work out the problems of
>signal decay as delays get longer...
>
>OTOH I have a nice digital delay brand new for $125 so....
>
>H^) hary
>
>Ken Stone wrote:
>
>> >Something else thats also been used are spinning magnetic disks.  I have a
>> >morley echo pedal that uses one and if I could find some transformer oil
>> >that wasnt a deadly poison[2], maybe it would work again.  I've
experiemented
>> >a little bit with using old 5.25" harddisk platters and making a disc
>> >delay like this but have never spent enough time on the mechanics to
>> >get it "right"[3].  The theory works okay tho.  This really is just like
>> >a tape delay tho.
>>
>> Have you had any success doing this? I always assumed the media would be
>> incompatible with regular tape heads, certainly as a gap must be maintained.
>> I guess you could always use the guts out of a floppy disk too.
>>
>> Ken
>> _______________________________________________________________________
>> Ken Stone   sasami at blaze.net.au
>> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
>> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>> Catgirl Paradise <http://www.anime.net/~kens/>
>
>
_______________________________________________________________________
Ken Stone   sasami at blaze.net.au  
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
Catgirl Paradise <http://www.anime.net/~kens/>