This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Monday, December 7, 2015

Death by Audio Reverberation Machine

Here's a cool dirty reverb effect by Death by Audio. It uses a Belton brick like many other designs, and offers clean reverb with the gain control turned all the way down. But when you increase the gain, fuzz is infused to the signal. You can mount the Belton brick to the board from the solder-side (best to do this once the rest of the board has been populated). It'll probably be too tall with the brick to fit in a 1590B, but a 125B should work just fine.


26 comments:

  1. Would a TLC274CN work in this? Thanks.

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    1. Possibly. I think I read somebody cloned this using a TL074 as well.

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  2. As posted in the FB page, mark it verified.

    I used TLC274CN from Tayda and it sounds great just like the video demos.

    Way cool pedal, thanks again Dude for the layouts.

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    1. It's not connected. You could jumper it to Gain 2 if you want, but it'll work the same either way.

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  4. sorry to ask... is the pcb layout already print size?

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    1. It is on the transfer pdf. See the Transfer Image Library tab at the top of the page

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    2. Right! my bad, thanks!... dude, you know this already.. But this blog is awesome! Keep'em coming I'll take care of them one at a time hahaa! have a good one bro!

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  5. could you share the schem for this one? it would spare me a lot of time! thanks!

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    1. It's on the FSB forum (you'll need to login to see it)

      http://freestompboxes.org/download/file.php?id=27255&mode=view

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    2. Awesome! one more question.. it seems that your design has a 220nf cap missing from the schem.. if im not mistaken it is the one at the end of one of the loops for the switch.. you did that on purpose maybe?

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    3. Oh you're right. Thanks for catching that. I'll have to rework the board a little bit. If you've already made a board just use a 220n cap to connect lug 4 of the switch to the Sw4 pad on the board.

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  6. This comment has been removed by the author.

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    1. It is verified. 5v only goes to the Belton brick.

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    2. yes I just realized, sorry about that, I was just deleting my coment... I'm trying out the tl074 and it runs on 5v

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    3. oh, I misread the data sheet.. 074 also ok with 9v... god I have my brain broken by now.. don't mind what i say today, I'll get off your hair hahaha

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  7. Hello,

    Very good job here in your website!

    I would like to know what the "sw's" are. Are they the BTDR pin, i.e., sw1 is the BTDR 1 sw2 is the BTDR 2 pin and so on, or I need to buy a 6 switch position ?

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    1. "Sw" stands for "switch." In this case it's a DPDT toggle. The BTDR goes into the six pads in a row on the right side of the board

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  8. Hey man!!! Amazing web site! I have a question about Belton BTDR-2H-L Does it need to be programmed? Or it's ready to rock as it is?

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    1. Thanks! The Beltons are ready to go out of the box.

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  9. Instead of the 100K resistor just above of the TLC274M4AIN (not ALN but AIN), try values between 1K and 10K. It sounds better to me.

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  10. Hi! and thanks for the very interesting project! I built it but the reverb seems to work only in one position of the DPDT. any suggestion? thank you a lot

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  11. Hi again! I tried it with TL074 and TLC274CN and they sound different, TLC274CN is a bit fuzzier.
    Anyway I still have the same problem, reverb does work only on one position of the DPDT. any idea? please help me! :)

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  12. Hi! I solved the problem. My experience with the different ICs is:
    - tlc274cn is a bit fuzzier than tl074
    - tlc274cn is a bit smoother, "rounder" than tlc27m4ain
    - tlc274cn for me is the best :)

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