Elijah-Baley
Active member
Hello,
I'm building a Boss DS-1 replica with a lot of mods and fetures, just for fun. I built it on veroboard layout from here:
tagboardeffects.blogspot.com
Schematic:
I started from the stock project, with just a mod: I moved the jumper between pin 1 and 2 of the op-amp and a some part to get more space.
A lot of parts are on socket pin.
I never had the original pedal, so I have some doubts about the sound I got. It sounds killer with the gain at max, but looking at some demo I noticed that I have a lot of volume even at 10 o'clock, the gain setting decrease too soon e too much, I guess. And I hear the op-amp unpleasant clipping, that I can't hear at higher gain setting.
The layout include the R40 1k resistors (not in that schematic), from output of the op-amp to 9v, but I tried without it, now it is soldered.
Transistors are 2N3904 for buffers and 2N5088 for the boost, but I tried to inverter them.
The IC is a TL072, I tried a JRC4558 with more bad clipping op-amp effect.
The diodes are 1N4150, and if I take them off I hear more volume and less distortion. I tried even the 1N4148, no changing.
Everything seems at the right place, every resistors is right (even the gain pot), none cut tracks or links are missing and those are ok.
Voltages looks ok.
I really stuck on it, and I'm so sorry.
Some suggestion?
I'm building a Boss DS-1 replica with a lot of mods and fetures, just for fun. I built it on veroboard layout from here:
Boss DS-1 Distortion
Collection of vero (stripboard) & tagboard layouts for 100s of popular guitar effects, with over 1000 verified designs. DIY your own boutique effects!
tagboardeffects.blogspot.com
Schematic:
I started from the stock project, with just a mod: I moved the jumper between pin 1 and 2 of the op-amp and a some part to get more space.
A lot of parts are on socket pin.
I never had the original pedal, so I have some doubts about the sound I got. It sounds killer with the gain at max, but looking at some demo I noticed that I have a lot of volume even at 10 o'clock, the gain setting decrease too soon e too much, I guess. And I hear the op-amp unpleasant clipping, that I can't hear at higher gain setting.
The layout include the R40 1k resistors (not in that schematic), from output of the op-amp to 9v, but I tried without it, now it is soldered.
Transistors are 2N3904 for buffers and 2N5088 for the boost, but I tried to inverter them.
The IC is a TL072, I tried a JRC4558 with more bad clipping op-amp effect.
The diodes are 1N4150, and if I take them off I hear more volume and less distortion. I tried even the 1N4148, no changing.
Everything seems at the right place, every resistors is right (even the gain pot), none cut tracks or links are missing and those are ok.
Voltages looks ok.
I really stuck on it, and I'm so sorry.
Some suggestion?
