Dream Fuzz : Too loud ?

[SandyD]

Hey all, wondering if anyone can help with this..

I put together the dream fuzz and it sounds pretty much like a big muff should as far as I can tell, but it is so loud that as soon as I notch the volume on at all it's well above unity and putting it anywhere near 12 o`clock is sort of unusably loud

Would changing the volume pot to a logarithmic help? I read somewhere that can have adverse effects on the tone though

Or changing the pot to a different B value? Or the value of R16 resistor?

Or is everything working fine and I just don't know how to big muff?

Thanks!

 

[music6000]

@giovanni ah thanks that makes sense about the pot

Yes that's a bodgy solder on the pot, but it was working, I've reflowed it anyway.

@phi1 yes that's pretty much it, it does mute on zero but then I've found it very difficult to get a unity gain, basically as soon as it's notched on it's the loudest thing in my rig by far.

may just try an A pot as that seems like it could make things easier to manage

Or after all this maybe I don't know how to muff :/ Haven't owned one before, I used to have a Swollen Pickle which I remember being a little easier to dial in. Reevaluating my rig now and working out how best to use it

Thanks all

That was going to be my next suggestion, something isn't right & it could be a dodgy Pot!
Good luck with the A100K, Check the resistance before putting it in across all 3 legs and turn it to make sure it varys.
With the B100K your removing, Check to see if it has a spike where you are getting the crazy volume once it is removed.

 

[Chuck D. Bones]

I think those values are reasonable. Keep in mind that when measuring resistors in a circuit you cannot measure the individual resistor, you always get the Thevenin equivalent as seen across the nodes, which is a fancy way to say that you are measuring the pot in parallel with any other resistors across its pins. For example the 22K you see is close to 50K in parallel with 50K (the two halves of the pot in parallel!) which seems reasonable to me. When you measure 1&3 you are measuring the parallel of 100K and the output resistance of the circuit, which is probably close to 10K (actually quite high, as you expect in vintage fuzz).

I was gonna say that...

That was going to be my next suggestion, something isn't right & it could be a dodgy Pot!
Good luck with the A100K, Check the resistance before putting it in across all 3 legs and turn it to make sure it varys.
With the B100K your removing, Check to see if it has a spike where you are getting the crazy volume once it is removed.

Should have been A100K all along IMHO.