I suggest biasing the fets at 10.5/11V to let the sound breath a little.
I've also lower the second 220nF to 180 for just a litlle less bass response, and increase the 1nF to 1.5nF for a little less treble. It helps to keep a clear sound at higher gain.
For the boost switch, 10uF/15nF is a little too much heavy for me as well : 3.3uF or 4.7uF at Q2 and 10nf to ground is more pleasant to my ears.
I didn't build it, but looking at the schematic I see some mistakes. The C3 cap is missing. It is the 10uF of Q1 jfet, it will go more boost when the dpdt switch is on. To add this 10uF we could move the jfet in the column 1, and put the cap on the row G and row I, negative side on G row. Then, I'm not sure how big is this mistake, but the 10uF on the pin 2 is reversed. The negative side should go on the IC, and the positive side between the two diodes.
You can tag it. Lots of clean boost fronm this little circuit. I used 2n5485 for the fets. Cheers!
ReplyDeleteThanks crissip!
DeleteTagged.
I suggest biasing the fets at 10.5/11V to let the sound breath a little.
DeleteI've also lower the second 220nF to 180 for just a litlle less bass response, and increase the 1nF to 1.5nF for a little less treble. It helps to keep a clear sound at higher gain.
For the boost switch, 10uF/15nF is a little too much heavy for me as well : 3.3uF or 4.7uF at Q2 and 10nf to ground is more pleasant to my ears.
ReplyDeleteHello, I have a little problem with this pedal, I have a pop in switch of DB+ dpdt, any ideas to solve it??
Thank you.
I didn't build it, but looking at the schematic I see some mistakes.
ReplyDeleteThe C3 cap is missing. It is the 10uF of Q1 jfet, it will go more boost when the dpdt switch is on. To add this 10uF we could move the jfet in the column 1, and put the cap on the row G and row I, negative side on G row.
Then, I'm not sure how big is this mistake, but the 10uF on the pin 2 is reversed. The negative side should go on the IC, and the positive side between the two diodes.
Ok i try, Very Thanks
ReplyDelete