Echo Base - a new PT2399 delay

Started by slacker, August 27, 2007, 04:33:19 PM

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deafbutpicky


slacker

The buffer looks fine.

The butchered version looks good, except that shape cw should be connected to pin 7 of U1. I don't think it will work connected after R28.

deafbutpicky

As I took your vero for my own build and added the mods on this before I made my update vero, I tryied to stay as close to yours
as possible. This one slipped through. Actually the shape really acts a bit subtle, but I've got no comparison. Just in case,
here's another one. Had to add another line... darn :icon_wink:

http://forum.musikding.de/cpg/displayimage.php?album=535&pos=2

deafbutpicky

During coffe break I took another look at my vero and guess what... found a mistake under U1.
corrected version here:

http://forum.musikding.de/cpg/displayimage.php?album=535&pos=1

mr_deadmaxxx


deadastronaut

@mr deadmaxxxx...

is that a 1590b?....if so which layout did you use?...i'd love to have a smaller echobase.....board space etc... ;)
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

mr_deadmaxxx

layout from anonymousfacelesscoward.

poodlebra

dimebugg pcb should slot in there easy too
Quality, cheap pedal parts, because the Poodle cares.
Germanium cans and diodes, PCBs, Full Stompbox Kits, UK's cheapest 3PDT:
http://www.pedalparts.co.uk/

slacker

Taylor's PCB will fit fine as well.

Scruffie

Quote from: slacker on June 18, 2011, 06:54:38 AM
Taylor's PCB will fit fine as well.
I think he said it'd only fit a 125B actually, which is a tiny bit bigger.

deadastronaut

Quote from: Scruffie on June 18, 2011, 12:07:08 PM
Quote from: slacker on June 18, 2011, 06:54:38 AM
Taylor's PCB will fit fine as well.
I think he said it'd only fit a 125B actually, which is a tiny bit bigger.

yeah i thought that box looked a bit bigger than a 1590b!...hmmm...
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

egasimus

I made a new layout for the Little Angel, incl. the dry/wet mod and the pin 6 potentiometer mod. Should theoretically fit into a 1590a, too. Will post it when I have time.

deadastronaut

Quote from: egasimus on June 22, 2011, 08:15:33 AM
I made a new layout for the Little Angel, incl. the dry/wet mod and the pin 6 potentiometer mod. Should theoretically fit into a 1590a, too. Will post it when I have time.

cool... :icon_cool:
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

egasimus


~arph

Would have been cool tho, an echo base in a 1590a  8)

deadastronaut

https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

kipper_71

Well, finally finished my build of this - certainly the most complex build I've ever attempted - and I was looking forward to a few evenings worth of debugging.

Plugged it in and ... it just works!  ;D

I've since spent the last hour with a fat ass grin on my face playing and playing.  This pedal is simply awesome.

Slacker - thanks, you are a true gent for sharing this.  The switchable delay time pots work a treat too - you do sometimes get a bit of strangeness for a second right after switching, but that just adds to the fun!

MarcoMike

#1078
Hi, I am finally building one of these... but as I am not familiar at all with cmos switching I decided to go the hard-way....

and it seems all features of the original echo base are still unchanged, as the tails-option. and more, as in the configuration I am presenting, also a third mode is present, this is how I would describe them:

tails: no need to explain
direct: both "delay out" and "feed" are switched on at the same time. this way the delayed signal starts to generate when you switch the effect on
flashback mode: the feed of the delay is always on, so as you engage the pedal there is already something being delayed. and this is probably the same as in the original echo base.

so the 2nd mode is the new feature, no big deal. the great thing for me is no need for cmos switching!

* i didn't read the whole post, so all of this might already be known...

Only those who attempt the absurd will achieve the impossible.

slacker

Nice idea, you might need to add caps between the opamps and switch 1 though otherwise it might pop.

You could add the direct mode to the original design if you wanted to using a rotary switch for the tails switch and wiring it so one setting connected to both points A and B on the original schematic.