Shaka Braddah III

[WGTP]

Since a dual op amp is being used, why not use one to drive the other.  That should turn it into a high gain distortion.

[swangor]

Since a dual op amp is being used, why not use one to drive the other. That should turn it into a high gain distortion

Thanks for the idea WGthickPresence, I hate to let components go unused, when I see an unused op amp or something I always try to think of a way to use it.  I kept thinking along the lines of an oscillator or something for a led flasher for the bypass or an 3 band eq or something but abandoned those idea.  I guess cascading those wouldn't be to hard to do along with a fixed set gain or a dual drive pot to drive them both equally, ect.

Unfortunately, I'm out of room on this perf board for much more and out of room in the box.  I learned a lot about construction on this project and hope the design and construction is a lot neater on my next project.  If I could just decide what to build next.

Thank for the input,

Rob S.

[aron]

Rob,

There are so many mods I can think of with the Shaka III, it's not funny.

However, the basic model of the Shaka 3 is fine, I still like the pedal a lot.

Thanks for posting the pics. I'm very impressed that you made your own layout and that it worked fine!

Very impressed!

This is how I do my layouts. The op amp part is the same for most of my pedals.

[petemoore]

Amazing you got all that int here...
 That perf looks like it would be a nightmare to debug...I"ve debugged tight ones like that and it is no picnic...

[aron]

Amazing you got all that int here...
That perf looks like it would be a nightmare to debug...I"ve debugged tight ones like that and it is no picnic...

Mine or Rob's?

It's not tight at all. In addition, this is one of the easiest layouts to debug. The signal goes from left to right in a clear manner in addition to being a close representation of the schematic.

[aron]

I think there's a lot to be said for laying out a circuit from left to right and similar to the schematic (at least for perfboard).

Debugging is pretty much straight forward, check bias voltages, V+ voltage points and grounds.

Then it's simply audio probe time if you need it.

If you have someone else's layout that you didn't create, it can be a nightmare to debug the signal path as well as locate components.

[swangor]

Thank you everyone for your comments

This was my first project and I learned quite a bit.

I believe I said elsewhere, I've done breadboarding for a few years just never built anything as a finished project.

Aron your beginners forum for the NPN boost got me going.  You had many good suggestions in there.  I figured I could do it too.

Thanks, this place (the forum) rocks,
Rob S.

P.S. it is a little tight on that board.  My next project will flow better -- I hope.

[swangor]

That perf looks like it would be a nightmare to debug...I"ve debugged tight ones like that and it is no picnic...

I didn't have much trouble debugging because there weren't too many big problems.

I did find modding the pedal was a bit of a problem because of the limited space and I used the leads to make connections to multiple components in some cases.  This makes desoldering a part much more time consumming than a part on a pcb or if i would have used bus wire to make the connections.

Next time I will use a lot more bus wire and clip the part's leads short after soldering.  It sounds like more work up front but I'll see if the old saying is true: "A stitch in time saves nine"

If that doesn't work any better than I guess I'll go the PCB route, but I like the Idea of the bare wires underneath and making and breaking connections for mods and stuff if needed.  It seems so final once the PCB is made.  I guess that is just the breadboarder talking in me.