Acidcode BassLine ML-303 DIY Project

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via this Reverb listing

Pics of the inside below.

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Acidcode BassLine ML-303 SN V652

Note: Auction links are affiliate links for which the site may be compensated.

via this listing This one is in via Chris. You can find some DIY builds and demos in previous posts here. These aren't too common. The last post was from 2018 and the first from 2006.

Details from the listing:

"Acidcode BassLine ML-303 analog synthesizer in perfect condition.

One of the best Roland TB-303 replicas in version 6. A classic among step sequencers and rarely available these days. All knobs, buttons, and switches work. Of course, you shouldn't turn it too far beyond its limit to avoid damaging it.

Only the delay knob is comparatively easier to turn, and the knob spins slightly. The delay knob itself works, though, so it doesn't matter if the knob continues to rotate at its limit. I might be able to find a replacement knob.

Firmware version: V7.02 July 08

Included in the offer are:
-Power supply
-1x MIDI red
-1x MIDI yellow
-Stereo 6.3mm jack to mono
-Mono 6.3mm jack
-Manual (printed version only)

Recommend this online Manual:

https://www.sequencer.de/files/ml303guide_user.pdf

For more information:

https://de.wikipedia.org/wiki/Roland_TB-303

https://www.sequencer.de/syns/roland/TB303.html
http://www.acidcode.de/"

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ACIDCODE ML-303 VERSION 4 COMPUTER CONTROLLED SYNTHESIZER

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"ORIGINALLY PURCHASED FROM THEGERMNYC WHICH HE USED FOR STUDIO PRODUCTION
THIS WAS DIRECTLY MADE FOR HIM PERSONALLY / HERE
I THEN PURCHASED IT IN OCTOBER 2017 / RESEARCH: AT MATRIXSYNTH (EXACT SAME)

THIS SYNTH IS IN WORKING CONDITION AND WITH MINIMAL COSMETIC BLEMISHES
INCLUDED WILL BE THE ADAPTER AND THE MANUAL WILL BE SENT BY .PDF TO THE OWNER
OR YOU CAN FIND THE MANUAL / HERE

PLEASE USE THE LINK SO YOU KNOW WHAT YOU ARE PURCHASING BEFORE YOU BUY THIS
IT IS NOT AN XOXBOX AND DOES NOT FUNCTION THE SAME"

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Acidcode ML 303 TB-303 Clone

ML-303 saw the noise (acid noise mashup)

Published on May 16, 2017 MIDGAARD BRIDGE

"ML-303 with fx recorded year 2008 and QM-309 with samples recorded year 1998"

We haven't had a post featuring the Acidcode ML-303 since 2014, unless you count this one from 2015. See the Acidcode label below for more posts.

TB-303 emulation on STM Cortex M4

Published on Sep 14, 2015 Acidcoder

"VA TB-303 synthesizer running on the STM32F4 discovery board."

Update: the emulation is based on the Acidcode ML-303. Acidcoder was actually involved in the firmware coding for the Acidcoder.

AcidCode ML-303 (like TB-303 / x0b0x) Digital VCO and CPU Replacement from Scratch

Published on May 27, 2014 Sylwester Retrospektive·7 videos

"I replaced the 'digital brain' by an ARM Microcontroller and implemented the VCO in Software, so it doesn't drift while temperature changes etc."

Acidcode ML303TB Roland TB303 clone

Published on Sep 15, 2012 aether0101011·2 videos

Acidcode ML303 V5 - Roland TB303 Clone

"Acidcode ML 303 v5 (software v7.02)

The ML 303 is the best and rarest clone of the legendary cult synthesizer Roland TB 303.
The circuits were adopted by the TB 303 and up, the ML is thus the clone of the TB sound comes closest. There were only a limited number of kits, which now no longer available.

The ML 303 offers:
- A great filter (Tune, Cutoff, Resonance, Envelope Mod, Decay, Accent, Volume)

- 2 waveforms Saw / Square
- Built-in step sequencer
- Stereo Out (Headphones), Mono Out
- LED running light display
- Powerful analog sound, the classic acid sound!

Compared to the ML TB has some modern features:

- Midi In / Out (Can sound modules - Fashion be used as a pure tone generator)
- Audio In (Mono)
- LCD Display
- 16 Memory banks of 8 patterns = 128 patterns (pattern length 16 steps)"


Please check Youtube and google for numerous sound examples. This unit has hand-matched Transistors.

Info:

The AT-1 attenuator kit has _not_ been installed but will be delivered with the unit.
If the sale is in Europe, the PSU will be included, otherwise you would need a 12V DC PSU. This is a private Sale -- no guarantee or warranty covered."

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Acidcode ML-303 Bass-Analog-Synthesizer

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Rare TSX Stepsequencer

via this auction

"To summarize the Main features of this lovely beast:

- 128 Patterns,
- Newest Firmware V07.02
- Realtime Edit,
- Random Pattern + Random Veloc.
- Groove Function (Shuffle),
- Midi In/Out (can work as master or slave)
- CV out /Gate out / Accent out / Trigger out ( Eurorack/Doepfer compatible),
- black Case,
- large 6.3mm jacks,
- external PSU"


Update via 7ate9 in the comments: "I think this is a acidcode transistorsex sequencer from the same guy(s) who made the ml-303 bassline.
homepage here: http://19642.forendienst.de/"

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Camoflauge ML303 Acidcode Roland TB-303 clone

"It is a fully functional and perfect clone of a Roland TB-303 with its own great sound! but this beauty comes with some surprises, like an own distiortion to drive the acid to that dirty dirty sounds that we love!!!

The 19'' rack aluminium case will fit perfectly on your studio and only needs 2Units of free space. Works on 220V EU plug, built with orange/yellow acid leds and has a huge LCD display on blue.It can store patterns and of course with Midi IN/OUT/THRU. The front plate is made on aluminium, has an awesome camouflage paint on the surface and is engraved by laser (see the pics) Its knobs are on black alumium texturized. This is a unique oportunity to get a very rare synth."

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Acidcode ML 303 TB-303 Clone

"Acidcode ML 303 v5 (software v6)
The ML 303 is the best and rarest clone of the legendary cult synthesizer Roland TB 303rd The circuits were adopted by the TB 303 and up, the ML is thus the clone of the TB sound comes closest. There were only a limited number of kits, which now no longer available.

The ML 303 offers:
- A great filter (Tune, Cutoff, Resonance, Envelope Mod, Decay, Accent, Volume)
- 2 waveforms Saw / Square
- Built-in step sequencer
- Stereo Out (Headphones), Mono Out
- LED running light display
- Powerful analog sound, the classic acid sound!

Compared to the ML TB has some modern features:

Midi In / Out (Can sound modules - Fashion be used as a pure tone generator)
Audio In (Mono)
LCD Display
-16 Memory banks of 8 patterns = 128 patterns (pattern length 16 steps)"

See the Acidcode label below for more posts including video.

ML303 the best TB 303 Clone ever !!

YouTube via acidjack303.

Acidcode ML303. Be sure to check out the label below for more.

dsPIC based VA Synthesizer

YouTube via Acidcoder

"Running some VA algorithms on a 16bit Microchip dsPIC DSC. Just for fun & still under development."

Acidcode Bassline Rack Camo View

flickr by JoeLMutantE
(click for more)

"Acidcode Bassline Rack Camo Inside DIY Finished By JoeLMutantE View Aluminium Black Knobs"

full size

camouflage

ShuffleBox

YouTube via Acidcoder.

More info on the ML-303 TB-303 clone here.

"This is a MIDI to DIN Sync interface that adds shuffle to old machines & sequencers like TB-303,TR-606,TR-808,MC-202,... Input can be MIDI or DIN, Output is MIDI & DIN timing shuffled. The shuffle amount can be adjusted with the potentiometer. The interface also has a Start/Stop button to stop and restart the synced device without losing synchronization. In this video you can see a modified 606 with internal shuffle (see my other videos) and an ML-303 (DIY TB-303 clone). The electronics inside the box will be available as a DIY kit for about 40-50€"

TR-606 with internal shuffle

YouTube via Acidcoder

"This is a prototype of a modified 606 with a shuffle function. The amount can be controlled with a potentiometer. The shuffle function works with internal tempo and din sync. The circuit is also a midi 2 dinsync converter. It will also work with a TB-303 and a TR-808 (to be tested)."

Acidcode Tweakbox

"The Acidcode Tweakbox is a new 2008 Synth DIY Project by the authors of the ML-303 BassLine: Please note: the picture shows the ML-303 V6, not the new Tweakbox. While the ML-303 has an analog audiopath the Tweakbox is now fully digital. That makes it very easy to solder and build. There are no SMD-Parts used. If you want to get informed as soon as the Tweakbox will be released just register with your eMail address in the Forum." Click here for more info. via sequencer.de.

ML-303v4 modified

flickr by pac209

"this ML has some unique mods, square wave PWM (sounds great), waveform pot, extra-low cutoff switch, extra short decay pot, overdrive...has MIDI too"

full size

Roland TB-303 clone