MXR 113 Digital Delay

[lowstar]

hi everybody,
this was the famous digital delay that jaco used.
any schemos around, or does somebody know which chips were in there ?

cheers,
lowstar

[cd]

If you search at hammer.ampage.org I think the whole schemo is there.

[Mark Hammer]

This is a pretty complicated circuit with a mainboard and about 5 daughter boards that plug in vertically to the mainboard.  I would seriously abandon any thoughts of making one.  For what it would cost you to clone one, in both time and money, you should get yourself a Lexicon or TC Electronics unit or a Holiest Grail....or all three.

As a piece of equipment, the unit has a couple of redeeming features.  First, the LFO has a nifty x100 function which will allow modulation rates from .1hz (once every 10sec) to 1000hz, which will let you use it like a kind of ring modulator.  Second, the modulation can be applied to ANY delay range, which means you could get it to vary between, say, 38 and 47msec in chorus-like fashion for doubling effects.  Those features are nice, but they can be readily implemented in a bunch of other commercial or DIY devices of much lower cost and simpler design.

But yes, the entire scanned schem is posted at my site.