problem solved… used my audio probe and found several marginal solder joints. reflowed and works as it should ..read more

Thanks for the quick reply Barry, I will check them.. also, if you noticed the 10004 diode, I burnt one of the solder pads and relocated what I think is the correct alternative (it works ) do you see any problem ..read more

Perhaps loose jfets when moving things around? The jack wiring looks correct ..read more

Hi everyone… I recently finished the Boogie 57 and on the test rig it works great. When I connect the jacks, foot switch, all I get is an oscillating  rumble when foot switch is engaged. with foot switch disengaged, it passes clean guitar sound.   I look forward to learning what my mistake is.   ..read more

I am glad to hear that. Thanks for reporting back. Feel free to add my modification as well. You can use a DPDT switch to toggle between the 22n and stock capacitor connected to C16, creating a Bass/Guitar switch. A 10n capacitor is particularly effective with smaller amp cabinets ..read more

I understand that statements like “too much” are subjective and that that condition can be different for different people.  I can hear that this circuit has an open uncompressed sound and feel like if I can get the EQ better balanced it’s going to be a great circuit for me.  BTW, I’m running both pickups while testing, occasionally checking the bridge and neck.  Both pickups together is kind of my reference when I test drive stuff.  By the way, I finished a Black Dog board last weekend and it is fantastic with my LP in the middle position. Ok, I spent a little while testing ..read more

Thanks for the help Barry.  I socketed the C1, C3, &C16 locations and went with 47nFs at the 3 locations.  MUCH better! I can run the bass knob around 11 o’clock and get a good balance of tone.  I’ll try your recommendations at C16 and let you know. I run my pickup height kinda low.  In comparison to my SG or strat, the neck pickup on the LP can get dark, but it’s one of the things I love about it.  The stock BurstBuckers are awesome to me. Again, thanks for advice on the cap values ..read more

You can just lower C16 to 18n, or 22n. Let me know how that works. If your Les Paul is overly Bass heavy measure your pickup height with strings depressed at the 22nd fret and compare. Gibson recommends 3/32″ on the bass string side and 1/16″ on the treble string side ..read more

I finished building a GBD3 board that I’ve had around for a while.  I used J201s since I didn’t have any 2N5457s on hand, all other components are stock. I noted in the build documents that you can increase the bass output by increasing the value of C1, C3, & C16. I’m guessing that it would be possible to lessen the bass output by reducing the value of these 3 caps.  My Les Paul is a little bottom heavy anyways and into this circuit it is way too much.  I can run the bass at zero and the treble at 3 o’clock or higher and it almost gets right.  I think it has some great ..read more

I’m not 100% on what you are trying to do I’m assuming you want the boost first going into the main pcb and you don’t want to use the boost independently just the main circuit with or without boost The way you’ve got it with the boost active LED left side illuminates bypass the boost and right side illuminates but you’d obviously need the bypass switch active for either side of the LED to light up     ..read more