Tuesday, 21 October 2014

Madbean Bacon Bits

Basic info about a Madbean original:
The BaconBits Booster is a simple op-amp based booster powered off a split rail supply. It can be used as a stand-alone boost to drive the front end of a tube amp or another effect such as an overdrive. The BaconBits utilizes an input buffer which feeds into a negative feedback gain stage. The result is a clean, high headroom boost that adds a lot of “shine” to the guitar at lower boost settings and dynamic, sparkling overdrive at high boost settings.


15 comments:

  1. I'm guessing a TC1044s series will work ok with this layout?
    Thx Miro! Geezer

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  2. I'm looking at Madbean's schematic for this and it seems he's updated the circuit, changed a few values and added a "Warm" switch. Perhaps this one would be a good addition as well? Seems like a fun little circuit.

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    1. I may check it out at one point.
      +m

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    2. I have had some luck with removing the cut between pin 1 and 8 of the 7660S .

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    3. Ah. My bad. That cut should not be there. I'll be updating the layout soon.
      +m

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    4. And fixed. Should be good to go.
      +m

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    5. And yes. This is per 2013 documentation. If one wants the current 2014 revision, i'd suggest getting the 1590A suitable PCB from Madbean himself.
      http://www.madbeanpedals.com/projects/index.html ($6 plus shipping at the time of writing)

      Adding the extended power filtering, RF filtering and FB loop cap switching, this layout would not be 1590A friendly anymore.
      +m

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  3. This projects reminds me of a question I've been meaning to ask:

    Has anyone found that the "quality" ICs (say Burr-Brown) they are getting from overseas eBay sellers are fakes that are actually the cheapest available unit with the same pinout?

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    1. to be honest, i have yet to receive any fake ICs through ebay. i know there are a few sellers that are known to sell fake or bad ICs, so you have to know the ones to use that are reliable and honest. there are a few of them list under the bargains thread.

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  4. I was surprised to see such a simple circuit left unverified so I built it. It works (of course) and sounds great actually. It's a clear sounding low noise booster

    Verified!

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  5. Hey Miro, this one is good to tag as verified.

    This circuit would be a great addition to a dirt box as a switchable boost

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    1. Great to hear! Cheers, i'll tag it right away.
      Sorry i missed the previous post.
      +m

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  6. Having looked at this on madbeans's site, isn't this basically an eternity clone without the clipping diodes? Suitable to add your choice of diodes and voila, instant TS clone?

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