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.

Wednesday, April 6, 2016

CultureJam Box of Hall

Here's a great sounding reverb designed by CultureJam, built around the typical Belton BTDR-2 reverb brick. I've laid it out for onboard pots and the BTDR-2 being mounted from the solder-side of the board.



30 comments:

  1. Thanks for posting this one. Any crazy chance that you could do a layout for the Belton BTDR-1? I think this pedal was originally designed around the first brick and I still have a couple left. Thanks either way!

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    1. Checkout the Belton website and compare the pinouts of the two bricks. It would add a little to the off board wiring but should be doable

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  2. ...And any chance to have a layout with the Feedback control instead of the Damp one? Still having the same disposition of this layout, please XD

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    1. I didn't see a schematic with a Feedback control. If you have one please share it.

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    2. Here you are:

      http://s7.postimg.org/gfkysgd17/box_of_hall_heavenwithin_dwell_damp_mods.png

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    3. Please, that would be great... I really like your layouts

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  3. is there any layout for reverb pedal without BTDR?

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    1. I cannot find one in my country, the BTDR..

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    2. You can't build this one without the Belton brick. It's the whole source of the actual echo/reverb.

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    3. I meant, any reverb pedal without BTDR.
      My Biyang Rv-8 doesn't have any of it. I really want to build a reverb pedal to replace it, coz it has few problems I couldn't handle

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    4. Try the Ersatz Verben. It uses a PT2399

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  4. Hi! I've made this pcb and doesn't work... 78l05 gets really hot

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    1. So I am a year late on this but hopes it helps someone. I notice the schematic (https://hotbottles.files.wordpress.com/2012/06/box_of_hall_schematic_v1-1.png) shows a full size 7805 regulator not a 78L05 which is a low power version of the reg, its possible that the 78L05 is not supplying enough current for the circuit hence the overheating and failure to work. I would replace the reg with a 7805.

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  5. this one has great reverb sounding, wish someone could help mark it verified

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    1. screw this, I'll make this one verified!

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  6. Hi ! I can't get this one to work. I can hear my guitar with the verb if i push the max volume on my amp.. the regulator 75l05 gets really hot. Could you check it please? Thanks

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    1. It follows Culture Jam's schematic correctly. I'm wondering if your regulator doesn't like being connected to the digital ground of the Belton brick. On several other reverb circuits using the brick pins 2 and 4 are connected to ground, but in this one, pin 2 (the digital ground) is only connected to the ground pin of the regulator. So try jumping pin 2 of the brick to the ground plain.

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  7. cant make mine work. I use btdr-2 medium, guess that would not be a problem

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  8. Cant' make it work neither. I replaced 3 times 78L05, still gets very hot everytime; even with pin2 jumped to ground. i think there is a problem with this schematic, can you check it please?

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  9. I've gone over the layout several times now and it checks out to this schematic.

    https://hotbottles.files.wordpress.com/2012/06/box_of_hall_schematic_v1-1.png

    Not sure why it's not working... :\

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    1. Maybe you should check it with that : http://tagboardeffects.blogspot.fr/2012/04/box-of-hall-reverb-culturejam.html
      This one is verified, and i see an aditional 100nf cap & 1n4001 on yours. MUST be a power problem since a hear the verb a little bit but the regulator is very hot.

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    2. Marks layout follows the same schematic. I checked. The extra components in my layout are for power filtering and polarity protection. Have you tried replacing your regulator? Do you have it oriented the correct way?

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    3. Replacing the low power 78L05 reg with a full size 7805 regulator as the schematic calls for would fix a lot of problems.

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  10. Yes, it is oriented the correct way. I changed it 3 times, and other people seems to have the same problem.. It just gets hot 2 seconds after powering up the board..

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  11. Hello, I am not sure if that is the problem but, pin 2 on 78L05 should go directly to ground right?

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    1. That's my thought as well, but on CultureJam's original schematic (linked above) it goes to digital ground only. And apparently even if it is connected to the rest of the ground plane there are still issues. I reached out to CJ and he just said to check the orientation of the 5v regulator. I'm planning on building this myself and seeing if I can sort out the problem, but haven't had time yet.

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  12. Hi! Why you don't ground pin 2 on 78L05? Belton pin 2 and 4 have to be grounded.

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    1. Because in the schematic CultureJam has that going to the digital ground of the Belton. Feel free to jump them to analog ground if it makes you feel better.

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    2. To repeat my comments to an earlier post:

      I notice the schematic (https://hotbottles.files.wordpress.com/2012/06/box_of_hall_schematic_v1-1.png) shows a full size 7805 regulator not the low power 78L05 version, its possible that the 78L05 is not supplying enough current for the circuit hence the overheating and failure to work. I would replace the reg with a 7805.

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