What else is on the breadboard? - The Mona Lisa Simpson OD

[Chuck D. Bones]

Beautiful!

 

[KR Sound]

Another attempt to bring the Boneyard to the masses through some Ovis love. I present the Li-i-isa... because you don't win friends with salad!

View attachment 53974

Are these diptrace creations? I dig them.

 

[Barry]

Another attempt to bring the Boneyard to the masses through some Ovis love. I present the Li-i-isa... because you don't win friends with salad!

View attachment 53974

Are these going to be available to the masses?

 

[szukalski]

Are these diptrace creations? I dig them.

Yes. Spot on.

Are these going to be available to the masses?

Yes. I want to make these accessible to everyone on the forum. I have some family free time over the next days and I want to try and get as many Boneyard builds done as I can. Once verified, then I’ll make them open to all.

 

[Tremster]

Another attempt to bring the Boneyard to the masses

Where can one buy all your Boneyard PCBs, and are you planning on doing this one, too?

 

[szukalski]

Where can one buy all your Boneyard PCBs, and are you planning on doing this one, too?

I generally release the gerbers so anyone can have their own made, but I also have spares and can send them through at a reasonable rate. Shipping is expensive (anywhere outside EU is €16 for example).

I wasn't planning on that one, it seems underwhelming, but maybe it's worth a breadboard to see if my mind changes. I won't tackle anything which is already available on PPCB, and it looks like you can just mod the Chela to do what you need. (Plus, 6 pots! That's just 3 pots too many for me )

 

[Fingolfen]

I'd started laying this one out before I realized @szukalski was doing an amazing version of it... but I figured I was already committed so I should just go ahead and finish it... *lol*

Schematic:



Board (copper is an option in the EasyEDA emulator, not sure that clear is an actual board option, but it'd be COOL):

​

 

[szukalski]

We need to get a superthread with all these layouts (assuming people are willing to share them).

 

[Fingolfen]

We need to get a superthread with all these layouts (assuming people are willing to share them).

If I hadn't already come up with some tentative art plans (and had a pre-set drill enclosure) I was considering just going with yours - it's extremely well laid out.

 

[szukalski]

 

[szukalski]

It’s a lovely one. I definitely prefer the lower gain transistors in there. Even fuzzes up a bit with a boost in front!

 

[Chuck D. Bones]

Very nice! Made your own Darlington, hmmm? Those transistors look a bit crowded. A word of caution: many transistors have one of the leads connected to case.
Cool assembly Jig!

 

[szukalski]

Thanks, the jig needs another iteration.. I should have included the IO into it, as well as a switching mechanism. Lessons in prototyping..

I really enjoy making my own Darlington pairs, I had some MPSA18s but they're not my scene tonally. These 2N2218A on the other hand.. they sound great in everything I try! Makes for a really nice FF, low gain 70-90 hFE. Nice and mellow. I keep telling myself to make a Darlington pair adapter.

Took a little while to warm up to this one. I am so used to in your face pedals that I almost dismissed it. It really goes nicely in making a useful tone.

 

[Chuck D. Bones]

The Darlington in this circuit should be completely transparent. It's a unity-gain buffer for the input signal.

 

[szukalski]

P.S. You're right about the casing. The collector is on the case, that's why they have a weird angle, but I need to put something like nail polish in between in case they shift (or shrink tubing is probably a better idea).

 

[Bricksnbeatles]

P.S. You're right about the casing. The collector is on the case, that's why they have a weird angle, but I need to put something like nail polish in between in case they shift (or shrink tubing is probably a better idea).

Knit them tiny sweaters

 

[szukalski]

I swapped out Q2 at the same time, so I guess that was the tonal difference. I'll try swapping Q1 back again at some stage.

 

[cooder]

Here's my Mona.
Definitely a nice tight boost to low mid gainish affair, and the tightness helps to use this for crunchy rhythms on my Tele neck pickup without getting flubby. Stacks nicely in front of gainier pedals too.
For Q3 I ended up testing two Russian GE and a 2N3906 silicon, they all sounded very similar and I went for the IT308B in the end. Needed a bit of leg bending because of the non standard pinout, but that's all no probs.

 

[Chuck D. Bones]

Another excellent build.

 

[cooder]

Another excellent build.

Haha yes they are piling up here.... thanks to your input!