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.
Always need more bass effects, right? This was one of the first bass ODs to have a clean blend. Should be an easy fit in a 1590B. Here's the schematic for reference.
So! Catching fleas :) According to the scheme: 220nF need to ground. 47nF (near BLEND (2)) should be 470p. All pass-through 10uF - polarity should be in the opposite direction.
Right you are! Never seen a decimal used with nF values like that. Fixed all but the blend lugs as I believe that's how it was on the originals—dry signal counter clockwise, effected signal clockwise.
What would it be - dry signal counter clockwise, effected signal clockwise - need to swap 1 and 3 BLEND. I know what I'm talking about - in front of me is a working layout ;)
Can I replace 4560D to 4558D or 4580D?
ReplyDeleteYeah. Any dual opamp should work
DeleteI have done it. Layout works.
ReplyDeleteBLEND - need to swap 1 and 3.
So! Catching fleas :) According to the scheme:
Delete220nF need to ground.
47nF (near BLEND (2)) should be 470p.
All pass-through 10uF - polarity should be in the opposite direction.
Right you are! Never seen a decimal used with nF values like that. Fixed all but the blend lugs as I believe that's how it was on the originals—dry signal counter clockwise, effected signal clockwise.
DeleteWhat would it be - dry signal counter clockwise, effected signal clockwise - need to swap 1 and 3 BLEND.
ReplyDeleteI know what I'm talking about - in front of me is a working layout ;)
Thanks for your work!
Okay so what would happen if i replaced the 100ks with 250k pots?
ReplyDeleteSound test my version DIY DOD FX91 Bass Overdrive:
ReplyDeletehttps://youtu.be/hyQs4XS_niY
\m/ \m/
ReplyDelete我用500p替代了470p，用100p替代了120p，用4558替代了4560，我得到的增益很小，我应该改正吗？
ReplyDelete