Rixroxx
Member
- Build Rating
I would like to share my build experience of this pedal. First, i am sorry to hear that those who build this project might have similar experiences about the oscillation. Let me assure that this circuit is good nothing wrong with how it was designed by the Pedalpcb team.
So let me tell the myth about the oscillation issue. I can vouch to say the circuit has no oscillation. I can prove this. If you have a good solder flow or connection and painstakingly have the right and good parts it should work. No need to modify R10 and C9. All intended values of parts of the pedal are good on its own.
At first i too experienced oscillation and thought there is something wrong with the switch because the oscillation is at its worst when i tap it. But then i discovered the caused of oscillation. It was the 1Meg resistor R10 which i socketed because i want to try other values such one recommended here the 510k. But i ended up using 1Meg (the intended value) because the 510k changed the sonic quality of the pedal such as the compression of the gain but also the EQ section affecting the bass, mid and treble, To my ear they are less responsive with 510K. In my quest to get rid of the oscillation i bought LT1054 charge pump to see if the oscillation will go, but it didn't go.
I opened the circuit and check some parts that might be causing the oscillation and there i discovered, the culprit is the R10 that it is socketed. I removed that socket and directly soldered the 1Meg resistor to the board. That was it, no more oscillation. I can max out the gain with no oscillation except there is typical noise associated with gain pedal. There is nothing wrong using the TC1044 or LT1054, The circuit will work as it should with any of these charge pump. But i noticed though with TC1044 the pedal's is sonically identical with the real SLO100 pedal. With the LT1054 IT sounds less warmer or twangy. I can say this because switching from humbucking to my single coil in my neck, I can say I liked the 1044 better as it retains the hollowness of the pickups sound on position 4 (neck+middle) on my strat.
I liked this pedal a lot and will build more in the future.
For video sound demo:
Visit the DIY Guitar pedal page
www.facebook.com
Hope this helps.
So let me tell the myth about the oscillation issue. I can vouch to say the circuit has no oscillation. I can prove this. If you have a good solder flow or connection and painstakingly have the right and good parts it should work. No need to modify R10 and C9. All intended values of parts of the pedal are good on its own.
At first i too experienced oscillation and thought there is something wrong with the switch because the oscillation is at its worst when i tap it. But then i discovered the caused of oscillation. It was the 1Meg resistor R10 which i socketed because i want to try other values such one recommended here the 510k. But i ended up using 1Meg (the intended value) because the 510k changed the sonic quality of the pedal such as the compression of the gain but also the EQ section affecting the bass, mid and treble, To my ear they are less responsive with 510K. In my quest to get rid of the oscillation i bought LT1054 charge pump to see if the oscillation will go, but it didn't go.
I opened the circuit and check some parts that might be causing the oscillation and there i discovered, the culprit is the R10 that it is socketed. I removed that socket and directly soldered the 1Meg resistor to the board. That was it, no more oscillation. I can max out the gain with no oscillation except there is typical noise associated with gain pedal. There is nothing wrong using the TC1044 or LT1054, The circuit will work as it should with any of these charge pump. But i noticed though with TC1044 the pedal's is sonically identical with the real SLO100 pedal. With the LT1054 IT sounds less warmer or twangy. I can say this because switching from humbucking to my single coil in my neck, I can say I liked the 1044 better as it retains the hollowness of the pickups sound on position 4 (neck+middle) on my strat.
I liked this pedal a lot and will build more in the future.
For video sound demo:
Visit the DIY Guitar pedal page
Log into Facebook
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www.facebook.com
Hope this helps.
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