LATEST CIRCUITBENDERS NEWS

30/07/19 - We have a new tutorial detailing bypassing / replacing the Roland R8 and R5 power supplies with their with unique connectors, using an internal dual power rail generator PCB. This allows you to run these machines using a standard external DC power supply. Click HERE for more details.

27/07/19 - We are now selling replacement SH101 power switches. These will solve any tuning issues your synth is experiencing if you touch the power button. Click HERE or on the image below for details.

16/07/19 - Roland R8 / R8M percussion grinding patch boxes are available from the SHOP. The box plugs in via a ROM card port and doesn't need any mods to the machine itself.

09/04/19 - Yamaha REX50 mods are now available for your machine. Mods include a 16 way RAM decimation switch matrix and a reclocking knob. More detals can be found HERE.

14/02/19 - We have a new write up on our Yamaha RY30drum machine mods that can be found HERE

12/02/19 - The Behringulizer 2000 mod kits have been updated with another version available for the DSP1024P and the DSP1224P. The later 24 bit versions of the Virtualizer DSP1000P or Modulizer DSP1200P. Click HERE for details.

18/06/18 - Behringulizer 2000 DIY kits are available on the SHOP page. The mod adds a system reclocking knob plus a switchable operating system and effects set to a Behringer Virtualizer DSP1000P or Modulizer DSP1200P

Behringulizer 2000 DIY kit

05/06/18 - We have a few 'Redshift Multiple' eurorack multiple and level shifter modules avaiable on the SHOP page.

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!

 

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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YAMAHA RY30

Like the Roland R8, the Yamaha RY30 is one of a rare breed of 90's drum machines that can still hold its own alongside more modern pieces of kit, without being used a a novelty retro machine or having a specific sound that has been used to death, although like the R8 its not often that you seem to see anyone actually admitting to using one. These days you don't often see a RY30 on peoples kit lists alongside their more fashionable Jomox and Elektron machines, but this is possibly down to the fact that it just gets on with supplying solid and sometimes bizarre digital percussion without drawing attention to itself by trying to eat up all the space in your mix or providing all the latest sounds that'll be unusably clichéd within 6 months. Despite the fact that the RY30 was produced in the early 90's, Yamaha wisely didn't exclusively fill it with the fashionable sounds of the time, and so it doesn't sound anywhere near as dated as other machines from the same era.

Modified Yamaha RY30

As the RY30 is essentially most of the synth engine from Yamaha's digital synths of the time with some drum sample ROM's strapped on, you get a range of sound shaping tools you won't see on other drum machines of the early 90's. These include a selection of basic synth waveforms along with various digital filters and control over several parameters for each drum sound via a modulation wheel. The changes can be recorded into the patterns in realtime. We're all horribly spoiled these days and this would be a basic requirement on a modern machine, but other than the Roland R5 and R8 pretty much nothing else could perform such witchcraft at the time.

If you want the full specs of this machine, take a look HERE.

If you want to hear an unmodified RY30 in action, you can't go far wrong with these two Autechre tracks from 1996.

 

 

Our mods have added a 24 way 'Bend Bus' based switching matrix that feeds the digital sound sample data back on itself into places it was never designed to go. This results in some very industrial sounding distortions, bit crushing, comb filtering, sample splicing and sound swapping effects that still sound 'natural' in some undefinable way, as the effects seem to sit in the stereo mix in a far more convincing manner than you hear on similar modified drum machines. Nothing seems particularly out of place, as if the RY30 was always designed to be producing such incontinent sickness and was just waiting for its real potential to be unleashed.

We decided to go with a switch matrix rather than a patchbay on this machine as the bent effects available seem to lend themselves to creating evolving changes while a pattern is playing. This kind of response is easier to achieve with the speed of just activating or deactivating switches, rather than having to repatch cables.
As you can hear from the demos below, it is still possible to make the kind of dramatic and excessive changes normally associated with bent drum machines, but you can also subtly vary a pattern from one bar to the next to allow things to evolve in a more organic way.

circuit bent Yamaha RY30

We've also changed the normal Yamaha yellow LCD screen for a blue one. Failing LCD screens seem to be a common problem on RY30's and this one was complteley unreadable due to about 80% of the horizntal lines missing.

If it wasn't for the insane prices that RY30's seem to sell for these days we'd definitely be looking to get hold of one for the circuitbenders studio, as i don't think we even scratched the surface of what might be possible on the demos! About 15 years ago when we first considered looking for a RY30 to try to mod they cost around £80-£90, which seemed fairly expensive when a TR707 wouldn't cost you more than £60-£70 at the time. These days you'll be lucky to get one for £200-£250!
Yamaha also made a rack mounted version called the RM50, which costs a lot less, so if anyone wants to send us one to experiment on.........

Take a listen to the demos below to hear the kind of sounds these mods can produce. All the sounds and effects were created live by processing drum patterns using the switch matrix.