Echo Blue Delay

New version of the PCB for 2015 - now takes vertical-mount pots for an even simpler build. You can still wire it if you want though, so don't panic!

Clone your own Deep Blue Delay. What's that? It's a PT2399-based digital delay with an analog direct signal path. It's a nice, natural-sounding delay with the warmth of a vintage tape echo. First repeat is clean, subsequent repeats start to darken and degrade. A great alternative to more clinical devices - this has soul

Three controls: Mix, Delay, Feedback. Keeping it real! Or keep it unreal by adding a fourth pot for 'dirt', which adds an adjustable audio feedback path in the delay signal for added filth, oscillations and runaway feeback.

Delay time is between 25 - 450ms. Feedback is from 1 to infinite with darkening and self-oscillation.

If you opt for vertical-mount pots they have round shafts, so you'll need knobs that fix with a set screw.

Kit includes: PCB, all components, hook-up wire, 3PDT footswitch for true bypass, high quality jack sockets, DC socket, battery snap, LED. Enclosure (pre-drilled) is optional and will not take a battery. Does not include knobs.

Difficulty: Medium

PCB size: 50 x 50mm

Knobs required: 3 or 4

Enclosure: 1590B

Direct-Connect compatible (4-way)

If you want the kit pre-built you must add the enclosure option below and select your knobs in the Components section. Check Specials for powder-coated enclosure availability. Builds only available with vertical-mount pots.


Download the older (v2) INSTRUCTION PDF

Mad Professor Deep Blue Delay


Pedal Parts



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Customer Reviews

18 review(s) posted (write review)
Cray Delay and lovely loops 5 product stars
"I shit my pants when it didn't work, had a slice of pizza to calm down realised I put the diode in back to front, spent about an hour or so cleaning the solder out of the pads and slapped it back together, boom, done. Total pain to correct with the pot in the way needing to be de-soldered first but that is my fault above all, negative/cathode to square pad, was pretty obvious in hindsight, oh well. This thing is as crazy as my filth fack but much easier to tame as far as halting the madness, may distort a little bit if you play too hard on the wrong settings, i'm pretty sure a UFO sneaked into the circuit somewhere when I ate my pizza too because when I turned it on it sounded like I was being abducted. Celebrated with a nice piece of cola toffee stuff, all courtesy of pedal parts/Fuzz Dog, and lost an hour testing one of my guitars and my bass on the thing. Can't wait to show my friends my new toy. The only problem I have now is what should I build next?!" Dan H - 30/05/2016
Procrastination Pedal OF NOTE 5 product stars
"If you have never played with na analog like delay, I can say you don't know what you're missing. I built this pedal with the Dirt mod, which gives alot of versatility, and just plain fun!! Straightforward build, and I would recommend the daughter board, just cleans everything up on the inside. Everything I expected and then some!!" Theo - 27/05/2016
fantastic pedal, great support 5 product stars
"the pedal sounds great and fuzzdog's support is always faster than light! I've done many fuzzdog kits, all great kits. maybe the led-bezel could be better." giorgio - 22/10/2015
Echo Blue Delay 5 product stars
"Just a quick review to say that the pedal is up and running and worked first time...Due to the fact of the brilliant instructions.Soundwise cant fault it much better than the piece of junk i had before,It is now on my pedal board Thanks Fuzz Dog!!" Mark - 20/04/2015
Great Pedal, Rewarding Build 5 product stars
"Finished this pedal the other day. My 5 or 6th FuzzDog pedal I've put together. A few challenges along the way due to my poor soldering, but a quick bit of problem solving got it fixed and bundled with the powder coated enclosure provided it looks as good as it sounds. Love the sound as the delay decays away. Ten out of ten." Nathan Entwistle - 07/04/2015
Endless fun, great sounding effect. 5 product stars
"Finished this build last week, was a challenge but worth every drop of effort. I fully recommend this kit, easy to follow instructions and quality parts. I will say this though, be gentle with the IC's. I managed to snap a couple of legs in the clip and had to order in a replacement. This is no comment on the kit provided, just take extra care if like me, you are blessed with sausage fingers. On to the next build.." Alex R - 06/02/2015
Excellent Delay!!! 5 product stars
"I love this delay. First one I put together and had a blast. Incredible customer service. I was helped multiple times and he knew exactly how to correct my problems. Its sounds so incredible. I can't wait to start building another pedal." Winn - 28/01/2015
Bloody Marvellous!!!! 5 product stars
"Excellent customer service more importantly tho' Excellent pedal!!!! 1.5 hours from start to finish (if you buy any of these kits get the switch daughterboard, makes life a bucket load easier) and it worked first time out... no trouble shooting needed... The sound?... possibly the best delay I've heard in a good while... Its gone straight on the board replacing my DD3... The repeats tail off smoothly and degrade ever so slightly as they do... totally transparent as well, with the level backed all the way off you need to see the LED to know the pedal is even on... Everything from country slapback through to "why is the guitarist at the bottom of a ravine" Excellent.... Nuff said" Poopot - 21/01/2015
finished pedal great, let down by pots 3 product stars
"Why supply board mount pots when they are not to be board mounted? I was OK soldering wire to pins with no eye but many people wouldn't be. I'm also sure I would have more confidence in the joints had there been eyes. Pots with eyes would be the correct part to use. Following instructions to letter would.result in mix and feedback controls having their "max" at full counterclockwise position. I.e. backwards. Having overcome these issues the pedal is great." Charlie - 04/01/2015
Proper lo-fi, very versatile delay 5 product stars
"Not my first pedal build, but definitely by best and probably most useful so far. Pretty easy to modify too - I've since added a momentary switch for infinite repeats, and a tap tempo module (involves removing R17 and the Delay Time pot). Superb instructions and top quality bits as always" Ben - 02/07/2014
Update to my previous review 5 product stars
"I mentioned in another review that my power supply struggled to power this pedal. I was wrong - the 'lock-up' I was getting is a known 'feature' of some versions of the PT2399 chip used and nothing to do with the circuit, power supply or Poodle's kit. There's an easy fix and Poodle has updated the instructions in case your chip misbehaves. Better still, the new V2 PCB has the fix built-in. Just another example of Poodle's attention to detail and customer service." John Roberts - 26/04/2014
The Enchanted Pedal 5 product stars
"If you like your repeats meticulously prepared in sterile conditions head elsewhere. My ears tell me that Echo Blue repeats are knitted by elves and fairies - enchanting!!" Gil - 03/02/2014
Super 5 product stars
"Took delivery of the Echo Blue this morning and after a minor (self inflicted) component issue it's now built. Fantastic kit first of all. PCB is of highest quality. I also got the pre drilled enclosure which is very well done. The sound is fantastic, beautiful degradation of sound in repeats, just what I was hoping to get. Highly recommended!!!" Johan - 06/09/2013
Beautiful analogue-sounding delay 5 product stars
"This is an incredible, high quality sounding delay for a fraction of the price you'd have to pay in the shops. Plus, it's a great fun build, even for a cack-handed amateur solderer like me. Huge thanks to Lee for his tireless email support... Makes you feel like no question is too stupid" James Hamilton - 09/08/2013
Fantastic Pedal! 5 product stars
"This is an amazing delay - lovely warm tone that will do everything from 50's tape delay through to modern repeats. I'm relatively new to DIY pedals and managed this without a problem. Top service - top parts - can't wait to build the next on my list." Dan Simmonds - 25/06/2013
Fantastic delay 4 product stars
"This is a tremendous kit. It's a neat, high quality board which is easy to build up. The position of the leads for the offboard pots makes for some fiddly wiring, but I'm splitting hairs. It makes little to no excess noise. It needs a good power supply, though - my cheap one doesn't put out enough current to run the delay chip." John Roberts - 24/06/2013
OK 5 product stars
"Fast shipping awesome effetc!" mr. P - 18/06/2013
Beautiful Analogulous Delay 5 product stars
"Wow. Another brilliant kit producing a wonderful sounding delay. High, high quality. I love the 'decay' the delay introduces, it's exactly what I wanted." Rob - 11/02/2013

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