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.

Tuesday, January 23, 2018

Earthquaker Devices Westwood

For the blog's 600th layout, here's a new one that didn't take long to get traced. Here's EQD's newest offering, the Westwood Translucent Drive Manipulator. Great for pushing your amp and giving a near clean boost. It features an active 2-band EQ and sounds great on bass as well as guitar.


27 comments:

  1. Congrats on #600!!! I appreciate your efforts!

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  2. Excellent! Can i request Schematic please? (I googled ir but with no luck)

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  3. Congrats man! your blog is a reference for me!

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  4. congrats for your 600th layout pal
    any opamp to replace IC?

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  5. Congrats!
    Your blog is the best, keep up the good work

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  6. For some reason gain pot doesn't do anything for me. The pedal works, and it sounds awesome, but gain seems to be maxed no, matter where gain pot is at. Any hints/pointers where to start looking at?

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    Replies
    1. Sounds like you might have a short or a bad pot...

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  7. Hi there, just one thing... that big 1uf seems to be a non-polarized one... which suits best here? electrolythic, metalfilm? thanks in advance!

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    Replies
    1. Probably film. One of the grey box film caps from Tayda will fit perfectly in there.

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  8. I built one and it sounds great, but the second one i've built has little volume and I have no idea what could be the problem

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  9. I build this and otherwise it works great but little dark sounding ant the treble doesn't effect so much. Anyone else have this kind of problems?

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  10. I've got the same problem! Seems like the treble pot works only at the second half! Can't hear any treble cut! Does anyone has a solution?

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  11. Would it be okay to use 4007 instead of 5817?
    I appreciate your hardwork, thank you so much!

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  12. Also, any alternative for the transistors?

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    Replies
    1. Any high gain silcon NPNs should be fine. Just compare datasheets.

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  13. What's the best way to lower the range of the drive control? Would I just lower the value of the pot? I like the minimum drive but only ever go up to about 50% of the sweep of the pot. Does the 4.7K resistor on lug 1 set the minimum drive? Thank you.

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    Replies
    1. Minimun drive is set by that 4.7k resistor. Try using a A250k or A500k pot to lower the max gain.

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