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, November 28, 2017

BearFoot FX Baby Blue OD

Here's Bjorn's Baby Blue overdrive. Fairly straight forward JFET circuit with hard clipping in the 2nd stage. The clipping diodes in the original are (massive) 2A1200s, but other silicon diodes will work–socket and experiment. The JFETs used in the original aren't confirmed, but I've laid it out for GSD pinout. Pots are board mounted and should fit in a 1590B. More info here.



Also, I've added extra holes on the PCB for the 470nF caps in case you want to use electrolytic capacitors.

5 comments:

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  3. Alright, sorry for the first two misfires. I had the chance to compare my build to a real BBOD and discovered the most exact match was 2N5952 for ALL transistors, 1N4001 diodes, and an A50k Volume pot. Linear was just too ungodly loud; the log pot was more pleasing, and it sounded just like the real Baby Blue.

    So there you have it!

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  5. Hello there,I'm momo lab,Glad to see more layout, I wish happy to play

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