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LATEST CIRCUITBENDERS NEWS

14/08/17 - We have a new demo of a circuit bent Phonic Verbifex multi FX unit up on our Soundcloud. Mods include a reclocking knob and a RAM loop button.

Phonic Verbifex

23/01/17 - The Kawai R-ROM sound ROM switcher mod is available as a solderless DIY kit on the SHOP page of the site.

20/01/17 - The KAWAI R100 mods page has been updated with the new external patchbay and ROM switcher mods.

29/11/16 - Poly800 mkI MDK Midi Dump Kit's are now available. This DIY kit adds midi sysex patch exchange with your computer to the mkI Poly800. Click HERE or on the image for details.

16/09/16 - Harmonic Engine DIY PCB's are now available. The Harmonic Engine is a clone of the 1981 E&MM Harmony Generator. Click HERE or on the image for more details.

29/07/16 - DIY Audio 2 Trigger interface kits are available in the shop. Theres also some pre-built modules for direct installation into a Roland TR8.
The interface takes an audio signal such as a click or rimshot sound, and converts it into a +5v 10ms analogue trigger pulse.

04/07/16 - We have a new DIY kit that adds a data entry knob to replace the up & down parameter change buttons on a Korg Poly800 mkI or mkII synth. Click HERE or on the image below to take a look

08/05/16 - Ten Thumbed Tone Deaf No Talent Noise Pollution T-shirts are available in various colours on the Mercht website until 22nd May. Ships on 25th May. Click HERE or on the image below to take a look.

circuitbenders t-shirt

15/02/16 - The Zoom 1204 reclocking mod is now available for your unit. Click HERE or on the image below to take a look.

Modified Zoom 1204

28.01/16 - We have a new 'Car Boot Sale' page on the site. This is designed for selling all the weird random bits & pieces of audio electronics that seem to accumulate in every drawer and cupboard. Click HERE or on the image below to take a look.

29/11/15 - Due to popular demand the Boss DR110 din-sync interface kits are back in stock. Click HERE or on the image below to take a look.

28/08/15 - We have a new write up detailing our expanded TAMA TECHSTAR TS305 mods. Included are a couple of demo videos and full descriptions of the mods. Click HERE or on the image below to take a look.

14/07/15 - The ZOOM 1202 mods are now available for your unit. The mod includes a 9 way RAM decimation switching matrix, a reclocking knob and a power switch. Click HERE or on the image below for more details.

27/03/15 - Our CB55 - Boss DR55 voice clone boards are back in stock. Click HERE or on the image below for details.

circuitbenders CB55 - Boss DR55 clone PCB

17/02/15 - The ZOOM 1201 mods are now available for your unit. The mod includes a 14 way RAM decimation switching matrix, a reclocking knob and a power switch. Click HERE or on the image below for more details.

02/02/15 - The new LTC1799 module mkII PCB's have arrived! This is a simple solution for reclocking and changing the pitch of any number of drum machines, effects units, synths, samplers and toys. Just add an external frequency pot and some power.

22/01/15 - We have a new write up and demos for a modded ZOOM 1201 effects processor. Click HERE or on the image below to take a look.

22/12/14 - On addition to our write up on our reclocked ART multiverb LT a couple of weeks back, we also now have an ART Proverb 200 effects unit on the same page. Click HERE or on the image for more details.

Modified ART proverb 200

10/12/14 - We have a new write up and demos for a reclocked ART Multiverb LT effects processor. Click HERE or on the image below to take a look.

30/11/14 - We have a new write up and demos for our reclocked Fostex DE1 effects processor on the site. To take a look click HERE.

25/11/14 - We have an update on the sound machine page in the archive. Behold, the sound machine F*** Box! Click HERE to take a look.

28/07/14 - We have a new DIY clone PCB of the voice circuits from a Boss DR55 drum machine available to buy. The board features all four analogue sounds and an overall accent, all driven by standard 5v trigger pulses or gates. Click HERE to take a look

circuitbenders CB55 - Boss DR55 clone PCB

02/07/14 - We have a new page on the site dedicated to ancient analogue drum machine retrofits. If you want external triggering, midi, individual outs or to be able to actually hear the sounds over the 70's inductors humming away in the background, then click HERE and we'll see what we can do.

16/04/14 - The Korg Poly800 mkI data entry knob mod is now available for your synth. This mod replaces the UP/DOWN data entry buttons with an endless rotary encoder. Click HERE to take a look.

22/03/14 - We have a new page with details of converting a Roland TR77 to use a regulated external power supply instead of the useless power circuit it has as standard. Click HERE to take a look.

TR77 power conversion

24/02/14 - The Korg Poly800 mkII data entry knob mod is now available for your synth. This mod replaces the UP/DOWN data entry buttons with an endless rotary encoder. Click HERE to take a look.

Poly 800 data entry knob

20/02/14 - Replacement tactile switches for units such as the TB303, TR606 and KPR77 are now available in sets at a reduced price, Click HERE to take a look.

16/01/14 - Our Korg Kaoss Pad KP1 mods are now available to be installed on your unit! Click HERE to take a look

14/01/14 - We have replacement LCD screens for the Alesis HR16 available on the site. Click HERE to take a look.

HR16 replacement LCD screen

30/12/13 - We have a new page up with photos and details of out Steampunk Christmas lamp. Click HERE to take a look.

Steampunk lamp small

24/12/13 - Merry Christmas from circuitbenders.co.uk!

11/11/13 - 03/07/13- We have a new write up with details of our circuit bent Korg Kaoss Pad KP1 that can be found HERE. The page includes photos and demos.

Modified Korg KP1

18/10/13 - We have a new simple tutorial detailing how to create a pitch control by installing one of our LTC1799 clock oscillator modules into a Roland TR505 drum machine. To take a look click HERE.

11/10/13 - We're now offering a replacement tactile switch / buttons service for the Jomox Xbase09 drum machine. Click HERE for more information.

13/09/13 - We now have LTC clock oscillator modules available in both DIP6 and PCB formats. The PCB includes an onboard trimmer to set the highest clock frequency. For more information, click HERE.

27/08/13 - Our Yamaha RX17 drum machine mods now include an alternative option of a 24 way percussion grinding switch matrix. Click HERE to take a look.

03/07/13- We have a short writeup on our circuit bent Roland R8 that can be found HERE. The page includes photos and demos.

10/04/13 - We have a short writeup on our circuit bent Yamaha RX5 that can be found HERE. The page includes photos and demos.

07/02/12 - Upgrade EPROM's for the Digitech Studio Quad FX processor are now available on the SHOP page.

05/12/12 - A quick write up on our modified Roland R5 drum machine has been added to the new machines archive. Click HERE to take a look.

19/11/12 - A write up on a modified Yamaha DX100 FM synth has been added to the site. Click HERE to take a look.

28/10/12 - All of our Akai sampler operating system upgrade EPROM's are now available in the shop. Click HERE to take a look.

28/08/12 - We've finally got around to rebuilding the Gallery page with a whole load of photos, some old and some new. Click HERE to take a look.

01/08/12 - We have some free Speak & Spell gibberish up on our Soundcloud page. Click the image below to go there.

25/07/12 - The Kawai R100 mods now include an optional pitch control and new demos to listen too. Click on the image to go to the R100 page.

Kawai R100 pitch

09/05/12 - Boss DR110 DIN-sync kits are now available in the shop. Click on the image for more details.

DR110 DIN sync kit

05/05/12 - Details of how to install a backup battery have been added to the Boss DR110 archive page. Click on the image to go there.

DR110 backup

05/04/12 - We now have EPROM operating system chips for the Akai S3000XL, S3200XL and S1000 available in our ebay shop. Click on the image to go there.

Akai os

26/01/12 - Our Kawai R50 drum machine mods now include an optional pitch control. For more infomation and a demo click HERE.

Kawai R50 pitch knob

02/01/12 - Akai S01 SALE! - For a limited time or until stocks are exhausted, if you pay for the cost of one of our Akai S01 sample grinding mods, you get the sampler itself thrown in for free! SALE ENDED.

Akao S01 SALE!

19/08/11 - The standard Casio RZ1 drum machine mods now include an optional dual pitch control and backlight inverter on/off mod. For more information and an audio demo of the pitch mod click HERE.

Casio RZ1 pitch mod

15/08/11 - The TR505 mods now include an optional pitch control. You can find more details and an audio demo HERE.

TR505 pitch mod

11/08/11 - A very limited number of Korg Poly800 mkI 'Polybeast' mod kits are available in the shop.

For more details take a look HERE.

POly 800 mod kit

08/08/11 - We have a small update to the Dan Echo DE1 page with a rehoused desktop version.

To take a look click HERE.

09/06/11 - Update to the Boss DR110 mod page, with details of an internal DIN-sync mod we have managed squeeze inside.

For more info click HERE.

DR110 internal dinsync

20/04/11 - Bend Bus sample grinding mods are now available for the Akai S2000. Mod includes an 18 way switching matrix, internal SCSI and replacement IEC mains socket.

For more info click HERE.

Akai S2000

30/03/11 - Dual pitch controls are now available as an optional extra on our Alesis HR16 mods. Mod includes a 'percussive range' pitch knob and a subsonic 'wall of noise' knob.

For more info click HERE.

HR16 pitch controls

24/02/11 - Pitch controls are now available for our VSS30 mods. Mod includes a pitch knob and a switch to select between normal pitch and mod control.

For more info click HERE.

VSS30 pitch

31/01/11 - We have a limited number of replacement Roland SH101 bender levers available. Includes the plastic lever, rotary spring and grub screw.

For more info click HERE.

SH101 bender lever

20/01/11 - Heres a quick demo of the Akai S2000 we're working on. All distortions, chops and fills are created using the mods with no external editing.

Bent Akai S2000 break1 by circuitbenders.co.uk  

07/01/11 - LTC1799 oscillator IC's pre-soldered to a standard DIP6 adapter are now available in our shop. These tiny chips are suitable for adding pitch controls to any number of synths, samplers, drum machines and toys.

For more info click HERE.

Take a look at our quick and simple guide to building an LTC1799 oscillator circuit on stripboard HERE.

LTC1799

25/11/10 - We now have an RSS feed so you can keep updated on all things circuitbenders.co.uk. Click on the RSS logo to sign up.

25/10/10 - The Akai S01 patchbay mods now come with a choice of either a rackmounted or a desktop patchbay. Click HERE for more details.

S01 rack

28/06/10 - The Akai S20 mods are now available for your machine. Click HERE for more information.

06/05/10 - Circuit bent Akai S20 up for sale on ebay. Click HERE to go to the auction.

25/02/10 - circuitbenders.co.uk stickers are now available in the shop. Click on the image for more details.

23/02/10 - The third and final installment of the circuitbenders sample packs has just been released on Loopmasters. Click on the image for more details:

13/10/09 - Our second sample pack of circuit bent sounds has just been released on Loopmasters. It includes over 770 loops and sounds.

- Loopmasters have just released a sample pack of circuitbent sounds created by us. The pack features over 700mb of content including over 750 samples.

- A 'filter lock' mod is now available for the FAT Freebass / MB33. This mod locks the filter and VCA envelopes open at a constant level so you no longer need to trigger the filter with a midi note when processing external audio signals. Click HERE for more information

- We now have a circuitbenders.co.uk facebook page. Click on the logo below to go there

- Sample grinder mods are now available for the Akai S01 rackmount sampler. Take a look HERE for more details.

- Extra mods for the Korg Poly800 mkII are now available, including delay control knobs and input path selection. Click HERE to take a look

- We now have patchbay mods available for the Kawai R100 HERE and the Yamaha RX7 HERE.

- The Roland TR505 mods now include the option of analogue trigger outputs for each sound. Outputs can be mixed and matched with individual audio outputs in any combination. Click HERE for more details

- Roland TR626 patchbay mods now include 2 x patchable switches. Click HERE for more details

- The Korg Poly 800 / EX800 mods have been expanded to include an Audio input, Filter FM controls and external VCF CV control. Click HERE to take a look.

- The external VCF CV mod for the Freebass / MB33 now has the option of 0-5V or 0-10V, take your pick. Click HERE for more information

- Finally the Roland SH101 mods have arrived! To take a look click HERE.

- An external VCF CV input mod is now available for the FAT Freebass / MB33 mods. Click HERE for more information

- Mods for the AKAI XR-10 drum machine are now available. Click HERE to go there.

- Mods for the Cheetah MD-16 drum machine are now available. Click HERE to go there.

- Mods for the FAT Freebass / MAM MB33 rack synths are now up on the Synth Mods page. Click HERE to go there.

- Mods for the Korg DDD-1 drum machine are now available. Click HERE to go there.

- Mods for the Casio RZ-1 sampling drum machine are now available. Click HERE to go there.

 

LATEST BENDS & MODS

This section is updated on a regular basis with details of our latest circuit bent and modified machines. Take a look in the archive for older featured machines.

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DIGITECH XP MULTI PEDAL

Yes, to anyone who has seen this mod before it is obviously what is known all over the net on dozens of pages and forums as the XP ALL mod, but for some reason the people who originally came up with this mod and generously posted it for anyone to install have decided that the name XP ALL is their intellectual property, whatever that means in this context. We're not sure how this actually matters, but each to their own.......
As a result we're now calling this mod an XP MULTI mod, and waiting patiently for inevitable accusations of copying the XP ALL mod and calling it something else! ;-)

Digitech XP ALL

We cannot take credit for this mod. It was originally developed on the diystompboxes forum by Greg Redman (Govmnt_Lacky), Zeke Rice-Grey (Prehistoricman), and Dino Tsiptsis (digi2t). You can find the original massive thread HERE.

We have added a couple of minor tweeks and designed a custom PCB but other than that, this mod is much the same as can be found in the XP ALL build instructions PDF's from 2012, that can be found around the net.

The XP100 Whammy/Wah, XP200 Modulator, XP300 Space Station, and XP400 Reverberator are all more or less the same pedal internally, just with a different operating system onboard. Essentially what his mod does is to take any of the Digitech XP series of pedals, and add a switchable operating system EPROM that means you can install all four of the XP pedals in one enclosure, and change which pedal you are actually using whenever you want.
As the XP300 is possibly one of the most bizarre pedals ever made, and is correspondingly much in demand, for a good condition one you'd probably be looking at paying £350-£400. If nothing else, this mod is a way of getting hold of a XP300 for a hell of a lot cheaper than you'd pay for the real thing, with the other XP pedals thrown in as an added bonus!

Digitech XP ALL mod

Our version of this mod adds a custom designed PCB that you can see on the right hand side of the image above. This mounts the new EPROM in the socket on the main PCB thats normally reserved for the standard OS EPROM on some early XP100's, although it is usually an empty space on later versions and other XP pedals. On these versions the actual socket for the new PCB to slot into needs to be added.

On the XP100 you will also need to add three extra RAM chips, and a selection of extra components as detailed in the PDF guides, although these should already be present in other XP models. Some XP100's have more components palready present than others.

The board also includes a relay and associated protection circuit. This allows for output switching to account for the fact that the XP100 is a mono pedal with a wet and dry output, where as the other XP pedals are all stereo.

The rotary switch on the top left of the image above selects which operating system you want to use. The OS can be changed at any time and the pedal is freely switchable between the different versions without having to unplug anything or restart.

Digitech XP ALL modifications

On the front panel theres four new LED's that show you which XP pedal you are currently using. The colour of the LED's correspond with the colour of the casing on the original pedal. These are red for the Whammy/Wah, blue for the Modulator, yellow for the Space Station, and white for the Reverberator.
In reality the Reverberator casing is actually black, but as proper black light LED's are a little hard to come by and would probably just instantly suck all the light from the room the second you turned it on, we decided to go for a white LED instead! ;-)

Digitech XP series modifications

One quick tip; if you're going to try this kind of mod yourself, remember that the XP range use an internal LED and an optical sensor instead of a potentiometer to determine the pedal position. This means if you install LED's like we have above, then any internal light leakage from the back of the LED's is going to effect the sensor and change the response curve depending on what LED is lit. To combat this we filled the back of the LED mounts with epoxy resin glue, and then once it was dry we blocked any light escaping through the glue surface using a completely opaque silver paint pen. Another option would be to use black glue gun glue, or just use sealed LED mounts.

Digitech XP1000 Jetpack XPALL mods

Dozens of demos of the Digitech XP series can be found on Youtube.

We won't be putting this up on the site as a standard mod that we'll be installing on anyones XP pedal, as a lot of the parts such as the rotary switch and the RAM are specialised things we wouldn't normally keep in stock. Having said that, we might do it as a special request if we have parts available, although we don't generally offer other peoples mods.