Sorry for randomly commenting here, but would you be able to do a layout for the EQD Bows? There’s a PCB layout at Effects Layouts and I’m guessing it wouldn’t take long to do a vero layout for it. Well for you it wouldn’t anyway! Thanks.
I took a gamble on this today and I’m getting nothing out of it. I’m getting no voltage at Q1 for some reason. Wondering if there might be an error around there? Which schematic/layout is this taken from?
It was a mistake around Q1 and Q2 indeed:-). Layout is updated. I don't have access to my hard drive with schematic files at the moemnt and there is lots of dead links online....PedalPCB have a schematic of B3K which is almost identical to this... https://www.pedalpcb.com/docs/Obsidius.pdf
Just made those changes (if I saw them all correctly) and I’m getting some sound now, but it’s very quiet and thin. Wondering if it is an issue with my build. Will do some investigating.
Squeals in the last 25% I would say. Admittedly I am using a linear pot as I don't have a reverse log to hand. It doesn't seem to add much gain throughout the entire sweep either, just brings in the oscillation. I will check my build again, although I'm a bit sick of looking at it now haha.
Sorry for randomly commenting here, but would you be able to do a layout for the EQD Bows? There’s a PCB layout at Effects Layouts and I’m guessing it wouldn’t take long to do a vero layout for it. Well for you it wouldn’t anyway! Thanks.
ReplyDeleteJust posted a layout for it. let us know if you build it.
DeleteAmazing! Thank you. Will report back.
DeleteHi fuzzhead. What scheme is this based on layout?
ReplyDeleteI took a gamble on this today and I’m getting nothing out of it. I’m getting no voltage at Q1 for some reason. Wondering if there might be an error around there? Which schematic/layout is this taken from?
ReplyDeleteIt was a mistake around Q1 and Q2 indeed:-).
DeleteLayout is updated.
I don't have access to my hard drive with schematic files at the moemnt and there is lots of dead links online....PedalPCB have a schematic of B3K which is almost identical to this...
https://www.pedalpcb.com/docs/Obsidius.pdf
Just made those changes (if I saw them all correctly) and I’m getting some sound now, but it’s very quiet and thin. Wondering if it is an issue with my build. Will do some investigating.
DeleteI missed the 1M that had moved down. Right so it’s working now, well sort of. Drive pot doesn’t seem to do much other than go into oscillation.
DeleteGreat, one step closer.
DeleteIt's over AM here so I'll take closer look tomorrow.
Moved some bits/wires around but still getting squealing/oscillation on the drive pot. Will await your thoughts!
DeleteHere is the schematics.
Deletehttps://www.freestompboxes.org/download/file.php?id=29339&mode=view
So far there is nothing that stands out but I'll check it a few more times.
Does it squeal no matter which position the gain control is?
Squeals in the last 25% I would say. Admittedly I am using a linear pot as I don't have a reverse log to hand. It doesn't seem to add much gain throughout the entire sweep either, just brings in the oscillation. I will check my build again, although I'm a bit sick of looking at it now haha.
Delete