Ruiner: vero to schematic

[doctortropico]

Hey,

I want to breadboard a Ruiner before building/modding it, but all I can find is a veroboard layout.
So I have drawn a schematic from it, but since I am not used to reading vero, there might be some mistakes.

Can any of you take a look and point out any possible errors? That would help me a lot.

Regards.

Vero layout I found :


My schematic:

[doctortropico]

maybe this is easier to read...

[slacker]

That doesn't quite match the vero layout, the two 0.1uF caps that you have going from the collectors of the transistors to +9V are wrong. Check the vero, the one from the collector of the first transistor goes to a jumper, the other end of that jumper goes to one end of a 0.1uf cap, the other end of that cap goes to the base of the second transistor. So the two caps are in series between the first collector and the second base.

Not sure why they did that because you could just use one 0.047uF cap instead and get the same affect, looks like someone just cut and pasted two circuits together maybe.

[garcho]

There are two 100N capacitors in series (you can use a 47N cap in their place) coupling the stages, as opposed to a 100N cap to 9V. I think you looked over a trace cut on the bottom right. This is an artifact from putting two 'Dark Boost' circuits put together, which is what the 'Ruiner' is. Feel free to try leaving out one of those series caps and just use a single 100N cap. Therefore, there is no 100N cap to 9V in the second stage either.

[doctortropico]

Thanks for the insights. Makes sense, just like the RF after the 9v didn't.

I'll update the schematic and repost.
Next up: ordering some parts and try it out.

Cheers.

[doctortropico]

Should be like this than.

(and indeed garcho, i overlooked a trace cut on the +9V line)



Tim

[garcho]

Looks right.

[posmaster]

Not sure why they did that because you could just use one 0.047uF cap instead and get the same affect, looks like someone just cut and pasted two circuits together maybe.

That's actually sort of a Devi Ever fingerprint - a lot of the circuits are just two of her "building blocks" stuck together as is - see the JHS pedals copying of her design a while back - design "flaw" and all.