I suspect You got keyboard dislexia and write OPA3124 but you want to mean OPA2134 (that shitty no good hi-fi 2134, that should be banned from guitar comunity, as same as that bastards you already know!...) :O)
Is it my mistake that there is no ground wire shown in the layout for this Mag Echo? Does the regulator ground it? I built the circuit but I didn’t want to run 9V to it yet without being sure. Thanks
I have a question. Is the C 100n from REG-Out to PT 2399 Pin 3/GND rigth (L5 to N5)? I can not see this C in the schematic from Pedal-PCB. Thanks for sharing your ideas with others!
That is just some extra power filtering between ground and the 5v rail. I usually add it when there is space for it. It don't affect the overall sound by any means.
Hi, Modulation apart, I am curious to know how the Keeley magnetic Echo sounds, compared to the Wampler Faux Analog Echo : did anyone compared them side by side?
I suspect You got keyboard dislexia and write OPA3124 but you want to mean OPA2134 (that shitty no good hi-fi 2134, that should be banned from guitar comunity, as same as that bastards you already know!...) :O)
ReplyDeleteOPA2134 it is. Updated. You could just use 4558, 1458 or LM358 if you don't want a "bouteek" vibe.:-)
DeleteIs it my mistake that there is no ground wire shown in the layout for this Mag Echo?
DeleteDoes the regulator ground it? I built the circuit but I didn’t want to run 9V to it yet without being sure. Thanks
NE5532, man: The OPA2134 wonderful killer! Always my debug choice!
ReplyDeleteJust for you to get a small idea: here, in Lisbon, they ask 11 euros for the f***** thing!
That was pricey for sure.
DeleteAh, Lisboa! Beautiful city, has fond memories of it.
I have a question. Is the C 100n from REG-Out to PT 2399 Pin 3/GND rigth (L5 to N5)? I can not see this C in the schematic from Pedal-PCB.
ReplyDeleteThanks for sharing your ideas with others!
That is just some extra power filtering between ground and the 5v rail. I usually add it when there is space for it. It don't affect the overall sound by any means.
DeleteAm I missing something or does this layouts have no ground wire? Also no note that says a leg of one pot goes to ground?
ReplyDeleteI built this circuit but I have not hooked it up to 9V yet. Is there really no ground wire to this circuit?
DeleteA ground wire could go on the bottom row on the left side.
DeleteGround connection added.
DeleteHi,
ReplyDeleteModulation apart, I am curious to know how the Keeley magnetic Echo sounds, compared to the Wampler Faux Analog Echo : did anyone compared them side by side?
Oh man...this was a big intimidating build!
ReplyDeleteI need to go and lie down...
https://youtu.be/9NozVgkMPgU
https://photos.app.goo.gl/tfDm5pzJTWkkxHCB9
Thank you as always.🙂
Is there any volume drop issue?
ReplyDeleteHey, has anyone built this and just had their opamps oscillate instead of process any signal from the input? Stumped on this.
ReplyDelete