Death By Audio Echo Dream 2  [traced]

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Death By Audio Echo Dream 2

Postby Beedoola » 24 May 2013, 08:50

I borrowed this from a friend. My only camera is my iphone so they're not the best but hopefully I can get some better shots with another friend's camera...

Image
Image
Image

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Re: Death By Audio Echo Dream 2

Postby jymaze » 24 May 2013, 19:27

Thanks for the pictures. Cannot be traced from that though.

The PCB design is really looking amateurish and the traces are so thin... I would be ashamed if I was the designer.
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Re: Death By Audio Echo Dream 2

Postby Beedoola » 24 May 2013, 20:09

jymaze wrote:Thanks for the pictures. Cannot be traced from that though.

The PCB design is really looking amateurish and the traces are so thin... I would be ashamed if I was the designer.


I'll try and get some better pictures up.
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Re: Death By Audio Echo Dream 2

Postby devastator » 24 May 2013, 20:29

jymaze wrote:The PCB design is really looking amateurish and the traces are so thin... I would be ashamed if I was the designer.


I'd be more ashamed by the poor soldering job . Look at the footswitch pins which scream for solder !

these guys are really a joke ! :applause:
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Re: Death By Audio Echo Dream 2

Postby Mbas974 » 24 May 2013, 23:16

C'mon....

2 Pt2399
1 OP-amp
1 7805

99% echobase and 5 minutes for eagle PCB autorouter :slap:


peace :horsey:
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Re: Death By Audio Echo Dream 2

Postby Beedoola » 25 May 2013, 01:41

Mbas974 wrote:C'mon....

2 Pt2399
1 OP-amp
1 7805

99% echobase and 5 minutes for eagle PCB autorouter :slap:


peace :horsey:


the other 14 pin is a 2206P

I don't know how to use Eagle. Thought others might like to see this :horsey:
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Re: Death By Audio Echo Dream 2

Postby Mbas974 » 25 May 2013, 22:13

Do not MIS understood me.. i thank you too for the pics..
Just surprised me these guys and their boutique pedal....
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Re: Death By Audio Echo Dream 2

Postby Beedoola » 26 May 2013, 18:03

Mbas974 wrote:Do not MIS understood me.. i thank you too for the pics..
Just surprised me these guys and their boutique pedal....


Ahh, gotcha. Sorry for :)

So. I did my first LARGE trace on this - I've done smaller fuzzes before. So forgive my total noobisness. Attached is a hand drawing schematic -brace yourselves. Also a small doc with pot values and the ICs...
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Re: Death By Audio Echo Dream 2

Postby Dirk_Hendrik » 26 May 2013, 18:23

jymaze wrote:The PCB design is really looking amateurish and the traces are so thin... I would be ashamed if I was the designer.


Same for the pads for the switches and pots. The drill diameter is so large the solder is needed as a bridge to fill the gap between board and component. Solder is a rather poor choice for that function.

And as well, thanks for the photo's!
Sorry. Plain out of planes.

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Re: Death By Audio Echo Dream 2

Postby benweasel » 26 May 2013, 20:42

Great Work. I checked the scheme ,but upper part is missing.
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Re: Death By Audio Echo Dream 2

Postby Mbas974 » 26 May 2013, 22:15

Modulation with 2206P could be interesting... keep on tracing please
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Re: Death By Audio Echo Dream 2

Postby Beedoola » 27 May 2013, 20:19

benweasel wrote:Great Work. I checked the scheme ,but upper part is missing.


I see that. Here is a link to another schematic upload, this one was scammed at a higher dpi so I don't think I can attach it here (its 26MB).

http://www.mediafire.com/view/ix22fnx06 ... can_4.jpeg

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Re: Death By Audio Echo Dream 2

Postby Beedoola » 13 Jun 2013, 03:57

I'm using Fritzing for the schematic - first attempt, so its not the best. Better than the drawing and I think I fixed any past errors.
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Re: Death By Audio Echo Dream 2

Postby J0K3RX » 13 Jun 2013, 05:24

Be careful!!! If you sneeze you might cause one of those hair line traces to break and open up internally... :o
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Re: Death By Audio Echo Dream 2

Postby skywise » 17 Jun 2013, 20:16

jymaze wrote:The PCB design is really looking amateurish and the traces are so thin... I would be ashamed if I was the designer.

Looks a lot more "pro" than their older shit. :lol:
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Re: Death By Audio Echo Dream 2  [traced]

Postby Beedoola » 20 Jun 2013, 21:57

updated the schematic again. I built this on my breadboard and then on perf and it works... The orange trace is just meant to show that the other trace it crosses is in fact a cross and not a connection: I'm using Fritzing and I don't know how to indicate connection passes/crosses. Noob.
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Re: Death By Audio Echo Dream 2

Postby skywise » 21 Jun 2013, 01:14

Interesting. So they used the XR2206 function generator IC as the LFO. That's very clever...back when Catalinbread did it in a tremolo. :secret:
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Re: Death By Audio Echo Dream 2

Postby coldcraft » 21 Jun 2013, 03:11

skywise wrote:Interesting. So they used the XR2206 function generator IC as the LFO. That's very clever...back when Catalinbread did it in a tremolo. :secret:



by clever, do you mean lazy?
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Re: Death By Audio Echo Dream 2

Postby atreidesheir » 21 Jun 2013, 18:55

The Biyang AD-10 delay has the same features for $50, and up to 1 second of not too noisy echoes.
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Re: Death By Audio Echo Dream 2

Postby Beedoola » 21 Jun 2013, 19:13

atreidesheir wrote:The Biyang AD-10 delay has the same features for $50, and up to 1 second of not too noisy echoes.


I think I built this for less than $50 (Thanks Tayda - though I needed to get the 2206 from Small Bear), and it sounds pretty sweet. That Biyang doesn't have the modulation, and the fuzz is actually pretty cool/useful feature. I agree I wouldn't pick up a ED2 but for a DIY build: its pretty nice. It is noisy though when you get around/pass the 600ms point.
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