Micro Addition plus

[mralanmorgan]

I just finished this up and the gain pot isn't doing anything. I've tested the pot on a multimeter and I tried a new TL072 chip. I can't figure anything else to be hanging it up.

 

[Mcknib]

Post pictures both sides of the pcb so all component values and orientation can be clearly seen

Important: Supplying Pictures when an Issue arises with a PCB Build !!!

I have to raise this ongoing issue when Members ask for Help with an Issue with their Build. I keep repeating this saying '' Pictures are worth a Thousand Words'' !!! Please supply Pictures of PCB & ALL connections ( Footswitch, Input & Output Jacks, Power Jack ) to it along with a clear...

forum.pedalpcb.com

 

[mralanmorgan]

Post pictures both sides of the pcb so all component values and orientation can be clearly seen

Important: Supplying Pictures when an Issue arises with a PCB Build !!!

I have to raise this ongoing issue when Members ask for Help with an Issue with their Build. I keep repeating this saying '' Pictures are worth a Thousand Words'' !!! Please supply Pictures of PCB & ALL connections ( Footswitch, Input & Output Jacks, Power Jack ) to it along with a clear...

forum.pedalpcb.com

I apologize, I knew I needed pics but I didn't realize I need to compress them first. Had to figure it all out on my phone. I just edited my post to add pics.

 

[Mcknib]

I apologize, I knew I needed pics but I didn't realize I need to compress them first. Had to figure it all out on my phone. I just edited my post to add pics.

No need to apologise just makes it easier to hopefully help

Have you visually checked all your component values and orientation are correct

 

[mralanmorgan]

No need to apologise just makes it easier to hopefully help

Have you visually checked all your component values and orientation are correct

To the best of my ability. For some reason I'm suspicious of the 47pf disc. The marking on the ceramic cap is 47. Is it supposed to be a different material?

 

[Mcknib]

To the best of my ability. For some reason I'm suspicious of the 47pf disc. The marking on the ceramic cap is 47. Is it supposed to be a different material?

47 is the correct code for it

Where did you get the build doc I can't find it anywhere

 

[mralanmorgan]

47 is the correct code for it

Where did you get the build doc I can't find it anywhere

I didn't. I just bought the board and 'painted by numbers'

 

[Robert]

Do the Treble and Bass pots work?

 

[mralanmorgan]

Do the Treble and Bass pots work?

They work unbelievably well. I'm not sure whats going on. I mistook the bass for level because of how much it has on tap. The treble is certainly working too. I've tried every combination, but the c500k pot refuses to make any difference.

 

[mralanmorgan]

I reflowed the TL072 and now it won't sound at all. I hear some scratching when turning the treble pot.