tedsorvino
Well-known member
I don't know if anyone is familiar with this pedal (original or clone project)
I've built it and it works quite well.
But there are some minor issues.
Firstly, one side of the BBD ICs (IC 9 and 8 ) have quite different voltages to the nominal ones and the other side of BBD ICs - IC 3 and 4 (even if the effect sound on both outputs is pretty much the same).
And the voltages on all test points seem correct. I have to admit that I haven't used an oscilloscope for calibration. Just a DMM.
Another issue, is that according to the layout and schematic a TRS socket has to be used on one of the two outs (output B). Both outs were working well in Mono. But in Stereo mode that particular out was causing a problem of stoping the effect (just dry signal) from the other out (output A- a simple TS out), when a normal TS jack was plugged in. I decided to disconnect the Ring connection from the PCB and socket and now everything works as it should (?). Good amount of effect on both outs.
Is this a normal behaviour? Any ideas about possible problems? Does the different voltages on IC 9 (not the callibrating pin 3) affect the overall behaviour (even the outs issue?
You can check the schematic and layout on the aionelectronics site if you want https://aionelectronics.com/project/blu ... -c-chorus/
Thanks in advance
I've built it and it works quite well.
But there are some minor issues.
Firstly, one side of the BBD ICs (IC 9 and 8 ) have quite different voltages to the nominal ones and the other side of BBD ICs - IC 3 and 4 (even if the effect sound on both outputs is pretty much the same).
And the voltages on all test points seem correct. I have to admit that I haven't used an oscilloscope for calibration. Just a DMM.
Another issue, is that according to the layout and schematic a TRS socket has to be used on one of the two outs (output B). Both outs were working well in Mono. But in Stereo mode that particular out was causing a problem of stoping the effect (just dry signal) from the other out (output A- a simple TS out), when a normal TS jack was plugged in. I decided to disconnect the Ring connection from the PCB and socket and now everything works as it should (?). Good amount of effect on both outs.
Is this a normal behaviour? Any ideas about possible problems? Does the different voltages on IC 9 (not the callibrating pin 3) affect the overall behaviour (even the outs issue?
You can check the schematic and layout on the aionelectronics site if you want https://aionelectronics.com/project/blu ... -c-chorus/
Thanks in advance