# the mysteries of the ml303- help needed **URL:** \ **Category:** Miscellaneous\ **Created:** [December 20, 2007, 7:33pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704 "2007-12-20T19:33:35Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![sonofprent](https://forum.midibox.org/letter_avatar_proxy/v4/letter/s/eb8c5e/32.png) [@sonofprent](https://forum.midibox.org/u/sonofprent)\ **Post date:** [December 20, 2007, 7:33pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/1 "2007-12-20T19:33:35Z")
It seems i may have stumbled upon a semi-completed ml303 v4. since the project has now been discontinued and the website shut down, i was wondering if anybody on here may be able to help with diagrams/schematics, eprom software and any other information that may be about? Any help would be greatly apprciated. help me breathe life into this sleeping beauty?! 😉 ---
**Author:** ![T.K](https://forum.midibox.org/user_avatar/forum.midibox.org/t.k/32/7_2.png) [@T.K](https://forum.midibox.org/u/T.K)\ **Post date:** [December 20, 2007, 8:23pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/2 "2007-12-20T20:23:32Z")
The ML303 community still exists, the forum is located here: [http://19642.forendienst.de/index.php](http://19642.forendienst.de/index.php) They also have an english section 🙂 Best Regards, Thorsten. ---
**Author:** ![sonofprent](https://forum.midibox.org/letter_avatar_proxy/v4/letter/s/eb8c5e/32.png) [@sonofprent](https://forum.midibox.org/u/sonofprent)\ **Post date:** [December 20, 2007, 8:32pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/3 "2007-12-20T20:32:46Z")
why thankyou very much, perfect. ive just spent a whole day googling trying to find this! Many thanks, Andy ;D ---
**Author:** ![Ashiman](https://forum.midibox.org/letter_avatar_proxy/v4/letter/a/d78d45/32.png) [@Ashiman](https://forum.midibox.org/u/Ashiman)\ **Post date:** [December 21, 2007, 5:31pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/4 "2007-12-21T17:31:12Z")
the fun begins when you want to register 😃 ---
**Author:** ![Wilba](https://forum.midibox.org/user_avatar/forum.midibox.org/wilba/32/21_2.png) [@Wilba](https://forum.midibox.org/u/Wilba)\ **Post date:** [December 22, 2007, 6:19am UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/5 "2007-12-22T06:19:38Z")
ML-303… \*drool\* I would trade my MB-6582 for one  ;D ---
**Author:** ![TheAncientOne](https://forum.midibox.org/letter_avatar_proxy/v4/letter/t/977dab/32.png) [@TheAncientOne](https://forum.midibox.org/u/TheAncientOne)\ **Post date:** [December 24, 2007, 1:37pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/6 "2007-12-24T13:37:58Z")
Interesting. A guy in Manchester has just offered me an unfinished ML-303 in part exchange for building him a x0x. I need to look at it first. Last time a musician offered me a part built kit, his soldering ‘skills’ had all but destroyed the PCB. On the same track, I once swapped some work for a non functional but immaculate looking Wasp. All I got was a case with knobs - the insides must have been left under water for a month a least, they were a mass of corrosion and beyond saving. Next time they tried it on, I “let” them stick me with an old Marshall with a burned out mains transformer they’d found in a mates garage for £50. It was a tagstrip built mark 1, a new transformer cost £40 from Marshalls. I added a few cosmetic parts, replaced the selectors on the back, The original Mullard EL34’s were still good. I gleefully sold it for £400.  Don’t get mad … ---
**Author:** ![Twin-X](https://forum.midibox.org/user_avatar/forum.midibox.org/twin-x/32/16_2.png) [@Twin-X](https://forum.midibox.org/u/Twin-X)\ **Post date:** [December 29, 2007, 3:55pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/7 "2007-12-29T15:55:44Z")
If you have problems on getting on that board let me know. I can help you getting in. But since you now own a ml it should not be a problem to sign up. ---
**Author:** ![TheAncientOne](https://forum.midibox.org/letter_avatar_proxy/v4/letter/t/977dab/32.png) [@TheAncientOne](https://forum.midibox.org/u/TheAncientOne)\ **Post date:** [December 30, 2007, 1:35pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/8 "2007-12-30T13:35:50Z")
> Interesting. A guy in Manchester has just offered me an unfinished ML-303 in part exchange for building him a x0x. I need to look at it first. … He came over with it yesterday. It’s not an ML - It was built by a student friend of his at Uni. It’s a perfboard clone of the 303, with ordinary transistors, not matched pairs, and a sort of VCA made from a CA3080. Looks like a hybrid between the original and the Oakley TB3030, (that’s the old one. not the MIDI controlled TM-3030). No tempco either. I hated moving anything in case any wires fell off. It has some kind of controller that ‘needs debugging’, based around a ready made PIC board, (might be from Quasar). When I looked at the,  notes, it seems the project got as far as getting the sequencer to do notes, but no slides or anything. I looked at it a remembered that I did stuff just as scruffy when I was 16,  only not as ambitious. Pretty good try for a first shot, but the experience was the real result. I think he ought to frame it and hang it in the studio. ---
**Author:** ![nILS](https://forum.midibox.org/user_avatar/forum.midibox.org/nils/32/19_2.png) [@nILS](https://forum.midibox.org/u/nILS)\ **Post date:** [December 30, 2007, 1:38pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/9 "2007-12-30T13:38:46Z")
> I think he ought to frame it and hang it in the studio. Ouch 😉 I’m lucky noone here saw the first electronic projects I built 😃 ---
**Author:** ![SLP](https://forum.midibox.org/letter_avatar_proxy/v4/letter/s/f0a364/32.png) [@SLP](https://forum.midibox.org/u/SLP)\ **Post date:** [December 30, 2007, 8:47pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/10 "2007-12-30T20:47:24Z")
> Ouch 😉 I’m lucky noone here saw the first electronic projects I built 😃 I’m lucky noone here sees the electronic projects I’m still building!  ;D ---
**Author:** ![TheAncientOne](https://forum.midibox.org/letter_avatar_proxy/v4/letter/t/977dab/32.png) [@TheAncientOne](https://forum.midibox.org/u/TheAncientOne)\ **Post date:** [January 1, 2008, 6:10pm UTC](https://forum.midibox.org/t/the-mysteries-of-the-ml303-help-needed/9704/11 "2008-01-01T18:10:23Z")
> I’m lucky noone here sees the electronic projects I’m still building!  ;D I think there is a parallel with an old piece of Air Force wisdom here: “A good landing is any one you can walk away from; and excellent one is when you can use the 'plane again”. If the box works, and keeps on working…