Darkglass b3k Cmos overdrive

[doomkraft89]

Ok, definitely not the best layout I´ve made. I´ve searched for months for a schem for this one. finally I got it. Made it to fit mmbfj201 converted to through hole. So, here you go:

update: Forgot to put in the switch.

[Silver Blues]

Oh shit, nice dude! Where did you find the schematic? Now we have the two big Darkglass pedals finally.

[doomkraft89]

Well. I had started to trace a borrowed one but it was not completed. But after I´ve seen the VMT here on the forum, I saw there where just a few small changes. and with the VMT schem I managed to figure out the last pieces of the b3k.

[rocket88]

Did you build it yet? It looks to me that the input and output at actually connected together which seems odd to me.

[doomkraft89]

Not build it yet. have prepared the board. but with a fulltime job and a 4year-old at home, the day has not enough hours. I´m sorry but I don´t understand what you mean by input and output conected together? Don´t have a schem in my computer (only on paper) but as soon as I have time I will import it and uppload it.

[BassVD]

Looking at the original pedal and the layout above, both switches need to have 3 positions, right?

[rocket88]

No worries man. I asked cause like silver I would love to build this one. Never mind my comment about the input and output being connected. I miss read the layout and didn't realize that the 100k goes to ground. Ignore me, can't think straight at the moment. Last of 4 exams this week is tomorrow.

[doomkraft89]

Yes. And the Attack-switch should be SPDT. not SPST. rushed the last of the layout.

[Sensei Tim]

Add d to my to build list! Thanks!

Quick question - maybe I missed it.  What are the pot values?

[doomkraft89]

haha. No you don´t missed them. I DID! Dooh! <
Drive: 100k lin
Blend: 100k lin
Volume: 100k log

Also the "20Nf" Should be 220Nf. Also missed some links in the "Link-and-cut-board"
I will uppdate the layout as soon as possible.

[Silver Blues]

This could probably be squeezed into a 1590B maybe?

[GrooveChampion]

Any updates on this one?

[Silver Blues]

There was a new schematic put up on FSB recently, that's as far as I know. Still watching this intently.

[Alex]

This is based on the new schematic:

[Hozy31]

Was looking for something to build this morning, thanks Alex. Built and verified! Sounds pretty good on guitar as well as bass.

[Alex]

Cool Gavin! That was quick! Would you say it sounds (more or less) like the original? Do the switches work properly?

[Hozy31]

I think its pretty close, but my bass amp is very sub standard, really need to get a decent one, especially now the son has taken up bass. The switches seem to be working fine as do the sweep of the pots.

Any advice on a good practice bass amp for the house would be helpful if anyone has some tips. I live in a detached house so neighbours aren't an issue to an extent .

[Silver Blues]

Aaaand another one for the neverending build list... Nice work Alex, this is awesome.

[Alex]

I've managed to reduce it one row:

[GrooveChampion]

Alex, there are either issues with your layout or the transition from SMD to DIP kinda screwed something. I saw people who claimed their layout worked, but I'm not sure if they used SMD to DIP Jfets.

Has anyone tried Doomdark's layout?