MXR Analog Delay (#118) Schematic???

[sugarblues]

I have an MXR analog delay pedal (#118) that someone clumsily tried to fix by installing a 16 pin "saddle" for one of the I.C. chips on the board.  There was no chip in the empty saddle when I got hold of it and so I am at a loss as to the chip's identity to be able to effect any repairs to the unit.  I am also "crossing my fingers" hoping that it was not one of the RETICON SAD1024 "bucket brigade" chips that are near-impossible to get hold of today.   Is there anyone out there at all that might have a schematic for my old "vintage" stompbox???

Thanking you in advance...