I just finished both uproar & egodriver.
Egodriver is working well despite the one led doesn't light.
I just measured uproar ic voltages and they are correct 9v,4.5v, and 0v on ground.
My LED's D8 & D9 light as well but D7 doesn't so I dont have any gain or distortion.
Finally my overall volume is low.
They only mod I did was that I used a SPDT on/on cause I didn't have any SPST.
I wire the SPDT like having a SPST.
Do you think that's the issue, or there is something else?
* I have checked all the traces and all the values of the components and my voltages are always in the range of 4.5V except on the diodes
Any thoughts?
I found my issue,
It seems it was a cold joint on R2,
now I am having the excepting sound gain and distorion.
I made some changes also
CP =1uf
C8=10n
C9=2n2
C10=10n
and for SDMB I use 2n2 instead of 10nf.
Also I want to ask something
D7 (blue LED) doesn't light but D8 & D9 light.
Is that normal? Any thoughts?
Yes, I wouldn't expect D7 to light. You might consider changing D7 to a 1N4148 or 1N914, or even a 1N4001, to make the difference in clipping more noticeable in that switch position.
Thanx mate I will check those diodes.