I built the Soul-bender, with 2 B324 and 1 2N3906 (only for now).
the problem that I have is that if the volume pot is not full, the pedal sounds like "BOOM"; with a lot of bass sounds and nothing of middle and high sounds
to be understood here goes a video:
as you can see, if the volume is at maximum pedal sounds beautiful, but if the volume pot is not the maximum, the pedal sounds like a mass of bass sounds.
I have put pots as 1M and 10k but the problem is the same. the volume pot has to be at maximum to sound good (like a soul-bender) and not as a mass of bass sounds.
I tested with more transistors and the problem persists, I really don't know what to do
please advise me
thank you very much.
Francisco
anyone have any idea? please
-Did you use C7, R10, and R11, and what are their values? C7, when you roll down the volume, forms a low-pass filter that varies with how much you turn down the volume; if it's too large, you will cut lots of highs.
-What are your voltages?
-Does the same thing happen when you change the guitar volume?
Quote from: midwayfair on December 12, 2013, 05:23:07 AM
-Did you use C7, R10, and R11, and what are their values? C7, when you roll down the volume, forms a low-pass filter that varies with how much you turn down the volume; if it's too large, you will cut lots of highs.
-What are your voltages?
-Does the same thing happen when you change the guitar volume?
Jon ,thanks for helping!.
I started checking the capacitors and I realized that I had C7 with 20% tolerance, change it to 5% tolerance and the problem was solved.
I never thought I would be so a notorious difference of 20% to 5%.
really thank you very much, looks like a small problem but without your help I would have NEVER noticed how affects C7
I'm very grateful from you Jon
Pancho
Glad you got it working!