KindCanuck
Well-known member
This build is my most anticipated, I love both pedals it’s based on and ever since I built the Sproing Deluxe, I wanted a dual drive pedal too!
I broke a few pads and traces, so there’s jumper wires all over
The first 5k pot I installed was bad, so that was frustrating, little did I know what trouble this little box would cause me. I started testing and immediately something was wrong. Everything sounded muffled, super low output on both sides, but most clearly on the blue side. I started probing the circuit with my audio probe, and noticed there was a wild drop off of signal after the tone pot before the TL071. I couldn’t find any cold joints or incorrect resistors, I kept reflowing joints hoping it would help. Then I started looking at caps. There’s my mistake. I had 10uf caps in where 4 10nf caps should have been! Oh man what a brutal 24h of troubleshooting.
I’ll post more later once I get a chance to play. Still not settled on the back plate or knob colours yet. Right now it’s got a cream back and black screws.
I broke a few pads and traces, so there’s jumper wires all over
The first 5k pot I installed was bad, so that was frustrating, little did I know what trouble this little box would cause me. I started testing and immediately something was wrong. Everything sounded muffled, super low output on both sides, but most clearly on the blue side. I started probing the circuit with my audio probe, and noticed there was a wild drop off of signal after the tone pot before the TL071. I couldn’t find any cold joints or incorrect resistors, I kept reflowing joints hoping it would help. Then I started looking at caps. There’s my mistake. I had 10uf caps in where 4 10nf caps should have been! Oh man what a brutal 24h of troubleshooting.
I’ll post more later once I get a chance to play. Still not settled on the back plate or knob colours yet. Right now it’s got a cream back and black screws.