PCB Layout to Pin-per-Hole Conversion: Why's My Boost Now An Overdrive?

[railhead]

I ran into an oddball problem that I just can't figure out, so I'm hoping you guys can help me.

I'm goofing around with adding a couple of effects into a certain size shell, and one of the things I want to add is the AMZ Mini Booster from GGG. His card a little too big, so I've been trying to squeeze everything onto a pin-per-hole board using my own layout -- and now the boost is also acting as an overdrive. That is to say, it's boosting, but it's not boosting clean: the signal is gaining a slight overdrive (which actually sounds good, but that's not what I want).

Here are the GGG links for this booster:
Bill of materials
Schematic PDF
Parts layout and wiring diagram


This is a shot of my layout from the top. It's made in Photoshop since there's not a decent layout editor for Macs, so I apologize for the non-standard appearance.




Where did I screw up? To me, it seems that the signal would distort if one of the transistors wasn't being handled by a resistor, but I just can't see where I may have missed it. Can anyone check the schematic and layout and compare it to mine, and see if they can find my error?

TIA

[Barcode80]

that boost adds grit once you pass about mid point on the vol knob i think. most of the favored boosts here are not truly clean, or are only clean until a certain point on the knob.

[96ecss]

The Mini-Boost is not a clean booster. It's supposed to add a little grit. If you want a great pure clean booster, try the Mosfet Boost. http://www.muzique.com/schem/mosfet.htm I have both and use them often.

Dave

[railhead]

Well, when I use his PCB, I don't get any signal distortion at all -- I get clean boost.

Like I said in my OP, something's messed up in my translation to Pad-per-Hole. I saw one error already, too: I had missed the ground between R5 and the common. However, when i connect it, the signal is totally dropped. If I crank the vol up max, I can barely hear anything.

So, I'm comparing a build with his card -- which gave me no breakup -- and mine on P-p-H. If anyone can see where I messed up the translation in doing so, I'd much appreciate it.