LPB-2 too bassy and too distorted?

[remmelt]

Hi!

I just finished an LPB-2 and am less than thrilled. I used the schematic from here but with a 5089 instead of the 5088. I also added a 1N4001 from V+ to ground for protection against accidental battery-turn-around stupidity on my part.

The sound is not so nice, though. I thought it would be a clean boost, like the NPN Booster, but it distorts on most of the volume's range. Not a bad distortion, but still.

Also, I feel that even on my rather trebly Strat the highs aren't coming through at all with this pedal. I read that in order to change the range of the boost, I should change the in- and outputcaps. They're now both 0.1uF. How much should I be thinking baout changing here? Just a tad, like 0.9 or lots and lots like 0.1nF?
I hear a "try and and find out!" coming, so I'll try and let you know what happens...

[SonicVI]

It shouldn't be distorting at all unless you're overdriving your amps input with it.    If you decrease the caps by too much you'll turn the LPB into a Screaming Tree which is very trebley.  The tree's caps are .0022 so try something in between, maybe .01 or .047.  Try soldering in some sockets are tring out several values until you find the one you like.

[nelson]

is the transistor orientated correctly?

[petemoore]

Sometimes I just parallel another one of same or slightly larger value,.
 If you have a .1uf in there, paralleling another to the end of the input wire makes it .o5uf

[Mark F]

Sometimes I just parallel another one of same or slightly larger value,.
 If you have a .1uf in there, paralleling another to the end of the input wire makes it .o5uf

I haven't looked at the schemo but I believe parallelling caps is additional. .1uF+.1uF=.2uF Which is the opposite of resistance. Series caps would be 1/C1+C2 etc........... :wink:

[petemoore]

I know what I was thinking when I typed 'parallel'...Series...anyway at least it makes no sense about connecting it just to the input wire.
 I guess I'm not that good at double tasking  :?:
 I've had trouble with that before, not to judge our predecessors in knowledge and nomenclature, but two resistors in series sometimes are parallel to one another...I'm not looking for anyone else who's had this problem when making this distinction...it's just that I've done this before and so I'm rationalizing it instead of apologizing.
 apology submitted...

[aron]

Very strange. Something sounds wrong. It does distort at higher volumes, but it shouldn't sound muffled. Something is not right.