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Welcome. I wanted to provide stripboard layouts I've made to help people new to electronics and even the more experienced get into different aspects of electronics.

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Sunday, 28 February 2016

Red Wizard Fuzz Stripboard Layout


this is the 3rd guitar effect in the "wizard" collection.
As anyone who has followed this site for long enough will know, I always make my pedals very minimal when it comes to controls but if anyone does add to this circuit I'd love to see what you've done.

anyway, enjoy.




13 comments:

  1. Sounds really nice. How would you add a gain control? I assume swapping one of the resistors for a pot?

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    Replies
    1. maybe stick a 470K pot in place of R6 or R2

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    2. Hey Kinski, it's not uncommon to see a 500k pot across where R2 lies and a log 100K pot off the output for volume.
      Paul this is a nice sounding fuzz in a similar vein to the muff fuzz but a lot nicer. Time to build.

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    3. aye it's kind of like that but less "muddy" and a bit less gain than the muffs

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    4. One additional question: Will the 500k pot replace R2 (what about minimum restiance?) or should be parallel to it? Thanks!

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    5. replace it or even put it in series with it, experiment. it won't harm it.

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    6. Finally I built it. And it sounds great with my Rhodes! I found that it sounds best when the 500k is in series with R2. In this case i have your suggested resistor value as default and can increase gain with the pot if i need a fuzzier sound.

      Thanks for that great circuit!

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  2. This comment has been removed by a blog administrator.

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  3. Hi Paul. I really love the sound of this fuzz and already built a few for my guitar friends. Now I'm interested how the circuit can be adapted to be more suitable for bass frequencies. Can you maybe give a hint where I can start experimenting? Thanks again.

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    Replies
    1. raising C1 C2 and C5 to 470n or 1u (non polarized) should do the trick dude

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    2. Thanks for the hints. I'd like to understand your circuit a bit more in detail. Can you please explain the job of C2 in this circuit? Is it also some kind of AC coupling like C1 and C5 are doing on the input and output but only between the two amp stages?

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    3. not entirely, they serve to AC couple however they are part of the filter circuit, the lower the value of these caps, the more of the lower frequencies are stripped away.
      C4 is a more interesting capacitor - this limits the bandwidth of the op-amp (this is why the op-amp selection isn't that critical) - this part is crucial to stopping hissing sound being created and is definitely something you need to know about if you plan on building hi-fi circuits - obviously its more complicated than that and has lots of equations and shit like that but it's easier just to try different capacitors between 10p and 1n until you get it the way you want it

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