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Dr Acid Three Day Bender

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The Three Day Bender ( TDB ) is based off the mid 70’s Colorsound Supa Tone Bender. It is a circuit which ( back in the day ) was heavily borrowed from the Big Muff, with a few different component values and the removal of the first clipping stage. Not...


The Three Day Bender ( TDB ) is based off the mid 70’s Colorsound Supa Tone Bender. It is a circuit which ( back in the day ) was heavily borrowed from the Big Muff, with a few different component values and the removal of the first clipping stage.

Not a fan of building a competent for component clone ( there are already a lot of others who do that, and very well ) I tracked down and was lucky enough to get onto a batch of very nice NOS KT3102E transistors. Gold leg, Tin Can, Hand Marked… the works. And they are right at home in this circuit. After a few prototypes, circuit bends, and further testing, I finally settled on, the circuit we have today. Also note that this will be a limited pedal due to the rarity of the transistors. Ill keep making them as long as I can keep finding them.

While the circuit of each TDB is identical, the artwork is not. Each of the plates are individually hand sanded, by me. Which will ensure your TDB is unique. The enclosure is folded stainless steel then powder coated. Its also secured by pop rivets to ensure maximum strength, but if you want to have a peek inside, I’m more than happy so send you a “gut shot” of your exact pedal.

As for the tone, I asked the “FuzzPope” ( Instagram handle ) long time Fuzz aficionado, to have a listen and give me his opinion on it. This is, verbatim, what he had to say,

“So, thoughts on the Three Day Bender, a new pedal in the excellent Dr Acid Effects line-up. It’s an elaboration on, not a pure replica of, the mid 70’s Colorsound Supa Tone Bender. I know this circuit very well, having owned several originals. Despite claims against the attempt, the TDB is very close to this awesome vintage circuit. Like the original, the TDB is packing a HIGH degree of output amplitude, unity for me is at 9:00(!!), the fuzz tone is noticeably less compressed than it’s professional MKII predecessor, and a very distinct, highly aggressive tone control is present, running the gamut from deep, rumbling lows to full ear-piercing scrambled eggs. While possessing higher gain, the Supa/TDB retains a mild gating, a rich characteristic, and Tone shaping feature for skilled players, which also works to suppress noise. This circuit does NOT clean up like the MKII (nothing but a fuzz face can), so roll-offs produce a moody, low gain OD that sounds great. Construction of the TDB is noteworthy for its incredibly rigid frame, owed to rivet assembly, meaning no options for 9volt battery use. Instead, you have a stompbox that will survive a tactical nuclear strike. Well done, Dr Acid”


All of these pedals are hand built in Australia True Bypass, no internal battery and are powered by the normal BOSS style ( 9v centre negative ) external power supply.

All New products are covered by the manufacturers new warranty. Please check their website for the length of warranty and warranty conditions.

If an item you receive is faulty get in touch with us ASAP.

Second Hand products come with a 4 week warranty from us. If there is an issue let us know ASAP!

This covers normal use and does not cover accidental damage, misuse, wrong power plugged into it, modding, water damage or any other damage caused by mistreatment.

Just treat it nice and all will be good!

We send A LOT of packages every week so don't worry about the shipping side of things!

We've never lost a thing and your awesome new gear will be packed up really well to avoid any damage in transit.

If your order comes in before 2pm we will ship it same day. Most of the time we pack things up all the way to 4pm so just call if you need it to leave same day after 2pm.

We ship mainly with Australia Post but may use a courier depending on location and size of the package.

Free Post ships with Australia Post standard and expected shipping times are between 4-6 business days depending on location. It will be longer to outside of metro and rural areas.

Express Post will usually be with you next business day in metro areas of QLD, NSW, SA, VIC and TAS. WA will take 2 days to metro and extra days after that to out side metro and rural areas.

Everything we ship has a tracking number with the exception of some power cables and smaller envelope packages. You will be emailed tracking once your order has been shipped!

"LOVE IT Or Exchange It Within 14 Days"!

The item MUST BE sent back in the same condition it arrived in and have all the materials it arrived with (manual,warranty card,all accessories) and be packaged in the original box.

Items returned in undesired condition (scratched,chipped, etc) will be subject to a restocking charge of up to 30%. Modded items will not be refunded!

Postage must be paid by the purchaser to get the item returned to us and we will exchange at our discretion the amount of the products but not the postage costs.

Items must arrive here within 14 days of your order being placed.

Some items cannot be returned like Pedalboards you have already put velcro on, strings, pedalboard tape, Cables and DIY cable kits.

Please don't use the Manufacturers box as the packing box or you will automatically be charged a 30% restocking fee!

Email us BEFORE returning your items so we can resolve or sort out any problems you may have and just so we know to expect the item. You may also want to insure or register your item as we don't take responsibility for lost or damaged post.

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