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, June 7, 2017

Diamond Compressor

Gotten several requests for this one and for good reason. It's probably the best optical compressor design out there. This one's not for the feint of heart, and will take up most of a 1590BB enclosure. 3 jumpers, but the pots are board mounted. The on/off indicator LED in the original is a bi-color LED that pulsates with the signal. The switches in the original are internal, but can be mounted externally for more control. Be sure to jump lugs 3 and 5 on the EQ switch. Here's the schematic for reference.


23 comments:

  1. OMFG

    It won't take me long *rushes for a pack of napkins*

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  2. How can I make the image bigger and clearer? When i save it and blow it up to read the values, it gets blurry. Am I missing something? How do you guys do it?

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    1. Just click on the image and it should open at a higher resolution

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    2. what i do is, click on the image, then right click and select view image, expand the image to maximize and then save in to the disk, hope this help :)

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    3. Hi, if you have photoshop its very easy to control the dark of pcb …
      I make my own PCB and when pcb's finished with photoshop, i print it with my hpdeskjet with clear shit of plastic projector ! The quality is very nice !!!

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  3. Hope someone verify this, i ordered some VTL5 but should be here in at least 2 months.

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    1. You can do it !!!Works very well !

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    2. Just read m'y comment ta the end !

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  4. Thanks guys. Works fine on tablet or phone but not on laptop. Weird......

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  5. HOooo Yes thanks very much man !!!! i love this comp going to make it next week

    The vlt5c3 can be find at banzai internet electronic store ! they have to the VLT5c10 for demeter compulateur
    and lf356 for compulator fomenter can be find at Taïda internet store !

    For the diamond comp is there any version or modification for bass guitare ?
    Thanks for all man !

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    Replies
    1. I don't know of any bass mods. I'd just build it as is first and see how it sounds with bass, then adjust caps as necessary (if necessary).

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    2. OK thanks going to try it with my bassist friend !

      Thanks very much, your job is so nice !!!!!

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  6. Hi !
    just see it now… it's not a true bypass ?
    If i'm right FSW1/2/3 mean foot switch ? but kind of foot FS ?
    Usualy i use 3PDT switch … could you clear me please about it ?

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    1. It is true bypass and uses a 3PDT. The pads for the footswitch are for the LED wiring (it uses a bi-color LED that pulses with the signal).

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  7. Hi ! Juste à question :
    Dont have spst swich for hi cut swich ! Could i put à spdt on / on on lug 1&2 ? The same no ? Or à spdt on of on ?

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  8. Some information on the probable differences between the regular diamond comp and the diamond bass comp:

    http://vulcanofx.blogspot.com/2013/07/diamond-bass-compressor.html

    Seems like it can be implemented with the above layout + off-board stuff but i haven't dug too deep into the information.

    an optocompressor is sort of on my list but i am not in a hurry as i feel like my pearl co-04 is pretty ok.

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  9. Verified on the compressor part! I did not plug the led compression by laziness on my part! The hi cut reacted very little! Otherwise the compressor works very well! Very good sound !
    Thanks for this layout !

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    1. Hi, can you post your voltages?

      I can't make my clone work for some reason.

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  10. Hi
    Thanks for the great site !
    what is the pcb dimension ?

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    Replies
    1. Check the Transfer Image Library tab at the top of the page

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