freestompboxes.org

Wowsshhh. Finally, my favorite circuit.
Shit, out of njfet. Why this come after place order

didnt think fit in 1590B unless 9mm pots came.


Thanks Baja!

plush wrote:

287m wrote: or where the best position to experiment?

Between clipping diodes and output buffer. Don't forget to decouple.

If any volume drop occurs, you can replace output buffer with a power booster.
Or add another gain stage to look like this: ->[clipping diodes]->[buffer/amplifier]->[tonestack]->[output buffer/amplifier]->[volume knob]

You can find classic soldano tonestack in gewgl.

latest build, stacked with baxandall tmb style. Im not satisfied, but he said good enough.

bump. still waiting for PCB Layout or Vero Layout for the MkIII SLO Overdrive

mkenny17 wrote: ↑17 May 2020, 11:22 still waiting

WTF is keeping you from making one? If you don't know how, take it as an opportunity to learn.

FiveseveN wrote: ↑17 May 2020, 13:46

mkenny17 wrote: ↑17 May 2020, 11:22 still waiting

WTF is keeping you from making one? If you don't know how, take it as an opportunity to learn.

well yeah, thanks for the advice. but currently as i type this i'm also learning how to make it happen.

Alright, now we're talking. What software are you working with? I've been meaning to switch to KiCad myself and it looks like there are plenty of learning resources.

FiveseveN wrote: ↑17 May 2020, 19:25 Alright, now we're talking. What software are you working with? I've been meaning to switch to KiCad myself and it looks like there are plenty of learning resources.

Here's a KiCAD learning resource for you: I redrew the schematic in KiCAD, you can download it from

https://github.com/rockola/slo-overdrive

Just import the schematic to pcbnew (literally one mouse click) and lay out the PCB.

PS: there are some small cosmetic differences, notably I drew Vbias pointing up where possible, however the schematic should be 100% equivalent to bajaman's MkIII, let me know if there are errors. I also didn't include the bypass switch nor the LED.

KiCad 5 is required. Latest (and recommended) version is 5.1.6, however I'm using the development version, let me know if it doesn't open for you.

PPS: Footprints have not been assigned so there's a bit more work to get to that one mouse click.

Way to leave a guy without excuses to procrastinate!
I'm actually working on a hybrid (Blackstar HT style) SLO preamp so I'll probably do that one instead. There's some info about its current state in this log, under "Tube Boomer".
Maybe mkenny17 will tackle it if going for KiCad as well.

Guys, can someone explain to me what is the need for multiple gain stages?

"Guys, can someone explain to me what is the need for multiple gain stages?"
answer: read the first post in this thread

Is there a demo of this pedal somewhere?

Thanks!

For the ones asking for demos check the link below:



This Circuit is Amazing!

Made a layout for MKIII (MKII + tonestack) [untested]. Should fit in a 1590BB Enclosure. Probably some mistakes in it, but its a start.

Schematic is from this post:

rockola wrote: ↑18 May 2020, 06:45 [...]
Here's a KiCAD learning resource for you: I redrew the schematic in KiCAD, you can download it from

https://github.com/rockola/slo-overdrive
[...]

Musikermomo wrote: ↑12 Feb 2023, 03:34 can send kicad files if someone is interested.

why not just zip the files and post it here for everyone?

Axldeziak wrote: ↑12 Feb 2023, 11:56

Musikermomo wrote: ↑12 Feb 2023, 03:34 can send kicad files if someone is interested.

why not just zip the files and post it here for everyone?

OK done, didn't know you could upload zips