The Morley Echo-plus uses an MN3002! For echo! Using a single 1024 stage is stretching it for more than a tiny bit of slapback, but using a 512 for any sort of echo (or even long delay time chorus) that's just absurd! And, as you can imagine, it has terrible clock bleedthrough.
:D
(http://www.harmony-central.com/Events/WNAMM97/Morley/Echo-Plus.jpg)
Thanks to my friend Shane for opening it up.
-Colin
Are you sure about that? The schematic http://www.morleypedals.com/ecvnewes.pdf shows a MN3205 which is a 4K stage device and a MN3102 clock gen. BTW: The MN3002 is (was) a 1024 stage device (512x2), not a 512. The 3002 is also from a time before the echo-plus. 1024 stages is fine for a chorus.
Take care,
-Peter
Perhaps they were different versions. You're right, it is a dual 512, but the fact is echo with a 1024 stage at any more than slight slapback is absurd.
-Colin