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DIY Stompboxes => Building your own stompbox => Topic started by: BillyJ on November 25, 2003, 12:08:01 PM

Title: Why is my uglyface way too damn loud??
Post by: BillyJ on November 25, 2003, 12:08:01 PM
I have built one before and gave it away (what a dummy!)
Now this one works but it is so loud I just about crapped my pants.
It is simply WAY too loud.
I thought perhaps the 386 I got from small bear was why but a swap for a RS one did the same thing.
Anyone guess why the hell it is so loud? I mean really really loud!!!
I used a 250K frequency pot but other than that it is stock.
If there is no real reson how can I tame it?
Title: Why is my uglyface way too damn loud??
Post by: Tim Escobedo on November 25, 2003, 12:25:31 PM
Volume pot?
:?:
Title: Why is my uglyface way too damn loud??
Post by: BillyJ on November 25, 2003, 01:27:17 PM
Well it has a volume pot on there now but I can hardly turn it.
Is the circuit really super louder than unity?
It is so loud right now it is comical.
Is there a better value pot that would let me have a little more room to get the right volume and help me not to blow speakers.
I really think if my amp was cranked and this thing was set to full volume I would pop one for sure.
I could easily see that happening to me.
If it is supposed to be that loud cool but holy smokes the difference is crazy.
I don't remeber my first one being this loud at all...
Well shoot this is the first time in my lofe I am complaining something is too loud  :D
Title: Why is my uglyface way too damn loud??
Post by: Doug H on November 25, 2003, 01:41:36 PM
Make sure the ground lug of the volume pot is connected.

Doug
Title: Mine don't have a bolume pot
Post by: petemoore on November 25, 2003, 07:30:32 PM
IIRC...a smaller balue pot shunt's more signal to ground/less output
Title: Why is my uglyface way too damn loud??
Post by: BillyJ on November 29, 2003, 12:32:31 AM
Thanks guy...I guess I can live with peel your head off volume  :lol:
Title: Why is my uglyface way too damn loud??
Post by: Ansil on November 29, 2003, 01:54:35 AM
a resistor before the pot. or even after
Title: Re: Why is my uglyface way too damn loud??
Post by: rankot on November 13, 2016, 07:05:54 AM
I built Uglyface and it worked fine for few minutes, but then it seems that 555 died - pedal is just distorting, no other action. I used CMOS TLC555. I also changed volume pot to 10k, because 100k was MADLY loud, and changed frequency pot to 500k. What could be the problem?
Title: Re: Why is my uglyface way too damn loud??
Post by: rankot on January 04, 2017, 08:39:28 AM
TLC555 didn't burn, but get overheated, so I added 75k resistor in series with volume pot and now everything is fine!
Title: Re: Why is my uglyface way too damn loud??
Post by: rankot on May 31, 2017, 04:05:28 PM
I am now definitely sure that TI TLC555 will not work on Ugly Face, it will always overheat, while ST's TS555 works fine. I have no idea why.