Nice looking Ibanez EM5 delay

StephenGiles · March 03, 2005, 02:03:26 PM

http://forum.musikding.de/attachements/ibnzEM5_.JPG
Stephen

object88 · March 04, 2005, 04:48:46 PM

It's, er, terribly small and hard to read, I'm afraid. I can't make out a lot of what's on there.

StephenGiles · March 04, 2005, 05:10:31 PM

Oh, I thought it was my eyesight!!!
Stephen

casey · March 04, 2005, 06:24:58 PM

if you use a viewer called "irfan view" it'll take care of the small schematic problem....

later-

TheBigMan · March 04, 2005, 06:29:13 PM

It's a great sounding digital delay. It actually has a built in distortion circuit to give it a much more analog sound. Robert Keeley is working on a clone of it at the moment.

object88 · March 04, 2005, 08:13:54 PM

Oh, that's MUCH better!

Another question... what's the difference between caps C32, C33 (bottom right), C21 (in the feedback loop on the output op-amp), and C2 (between the two op-amps after the input)? One is hatched, the others are not, but with a triangle, square, and maybe circle on one side. Never seen that before...

puretube · March 05, 2005, 02:18:42 AM

the hatched ones are electrolytics;
irfan-view didn`t make the small schem "sharper";
the delay-chip is obsolete,
but similar to some Princetons/Holteks...

pyrotek · March 25, 2005, 10:58:15 PM

What is CP? Is it a component? It is connected at the output of one of the inverter...

TheBigMan · March 26, 2005, 09:06:01 AM

Quote from: pyrotekWhat is CP? Is it a component? It is connected at the output of one of the inverter...

Check Point probably. The service notes usually show how the wave form would look on an oscilliscope at these points.

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Nice looking Ibanez EM5 delay