God I love this pedal so much. I built your layout for the lead channel a few months ago and loved it so much I hunted down an actual SD-2. I might build this one just for the hell of it, too. Such a great circuit. Thanks for the layout, Anders!
Glad someone else appreciates this pedal as much as I do. It's been my secret weapon for the last 20 years. Thanks for the super quick response for the layout, Anders! Will get to building as soon as I make an order for parts. Stoked....
That pedal is also one of my favorites. I always disliked the crunch-channel, though. It has its strengths in front of bassy amps with the neck-PU, but lacks warmth. Good for nasty BM!
Strange. I've always thought of the crunch side as a fairly dark sounding OD. That's why I've always liked it with my Strats and Teles. Perhaps mine is voiced differently because of component stray or some such. I'll be curious to see if this build matches the darker tone of my SD-2 crunch side. I hope so....
I'd really appreciate it. I know I can pick up a used unit for like $40, but it sounds like a neat, entirely over engineered for the price point, original circuit. Thanks so much for all you do!
welp. couldn't help myself. you can tag it. only thing i noticed was Level 3 down at the bottom of the board should be Level 2. another excellent layout, Anders!
I would say so. I used a J201, 2N3904, 1N914, and a 4580. I sometimes use my SD-2's crunch channel in an "always on" mode. very low gain, slight tone boost. I think it captures that exactly, as well as the rest of the gain & tonal sweep.
Sorry. One more question. Is it ok that there is not a cut between pins 4 and 5 at the bottom of the opamp? I imagine so since it has been verified as shown. I just can't remember ever seeing a dual opamp used without cuts all the way down to the bottom of the dual opamp. Unless it's only using half of the opamp and pin 5 is simply grounded for that reason?
That's correct - the notes specify the crunch channel used half of an op amp, I imagine the lead channel used the other half. You can see the output and inverting input are tied together so it grounds the whole side.
God I love this pedal so much. I built your layout for the lead channel a few months ago and loved it so much I hunted down an actual SD-2. I might build this one just for the hell of it, too. Such a great circuit. Thanks for the layout, Anders!
ReplyDeleteGlad someone else appreciates this pedal as much as I do. It's been my secret weapon for the last 20 years. Thanks for the super quick response for the layout, Anders! Will get to building as soon as I make an order for parts. Stoked....
DeleteThat pedal is also one of my favorites. I always disliked the crunch-channel, though. It has its strengths in front of bassy amps with the neck-PU, but lacks warmth. Good for nasty BM!
ReplyDeleteStrange. I've always thought of the crunch side as a fairly dark sounding OD. That's why I've always liked it with my Strats and Teles. Perhaps mine is voiced differently because of component stray or some such. I'll be curious to see if this build matches the darker tone of my SD-2 crunch side. I hope so....
DeleteWell ... since you're being so kind about requests .. is there any chance of a TC Electronic Mojo Mojo?
ReplyDeleteIt is very close to Dark Matter Distortion. I think it is doable but it might take a couple of days.
DeleteI'd really appreciate it. I know I can pick up a used unit for like $40, but it sounds like a neat, entirely over engineered for the price point, original circuit. Thanks so much for all you do!
Deletewelp. couldn't help myself. you can tag it. only thing i noticed was Level 3 down at the bottom of the board should be Level 2. another excellent layout, Anders!
ReplyDeleteThanks for the verification. Do you think it sounds pretty true to the SD-2 pedal?
DeleteThanks
I would say so. I used a J201, 2N3904, 1N914, and a 4580. I sometimes use my SD-2's crunch channel in an "always on" mode. very low gain, slight tone boost. I think it captures that exactly, as well as the rest of the gain & tonal sweep.
DeleteThanks Brian for verifying, great work!
DeleteGreat. Thanks for the reply. Will get mine built up when I get my parts shipment. Thanks again for the layout, Anders. And all the layouts here.
DeleteThis comment has been removed by the author.
ReplyDeleteSorry. One more question. Is it ok that there is not a cut between pins 4 and 5 at the bottom of the opamp? I imagine so since it has been verified as shown. I just can't remember ever seeing a dual opamp used without cuts all the way down to the bottom of the dual opamp. Unless it's only using half of the opamp and pin 5 is simply grounded for that reason?
ReplyDeleteThanks in advance.
That's correct - the notes specify the crunch channel used half of an op amp, I imagine the lead channel used the other half. You can see the output and inverting input are tied together so it grounds the whole side.
DeleteGot it. Sorry I missed that in the notes. Thanks for the assist.
Delete