Stephan Möller AC30Simulator

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Stephan Möller AC30Simulator

Postby Alex Frias » 19 Jan 2009, 02:21

Anybody has the schematic of this very interesting amp simulator?

It seems to be no more available at the internet sites it used to be...
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Re: Stephan Möller AC30Simulator

Postby RnFR » 19 Jan 2009, 02:42

i've been interested in this as well. i've been really jonesing for an AC30 tone, and don't have the cash for a new thousand dollar amp at the moment. want to try some AC30 sims, and this one sounds like it could be really good.

apparently the design was bought and is now a proprietary holding of some company?
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Re: Stephan Möller AC30Simulator

Postby soulsonic » 19 Jan 2009, 03:44

The circuit was purchased by T.C. Electronic.
People who got copies of the original from Stephan when it was still available had to sign a legally-binding non-disclosure agreement regarding the values of the circuit.
That is why you won't find it here or any place else. Sorry, but Mr. Möller was very smart about how to bind people not to share his IP. This is part of the reason why I have no sympathy for the crying bootweaker babies who don't know how to legally protect anything and then throw a fit when it gets exposed.
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Re: Stephan Möller AC30Simulator

Postby Whoismarykelly » 19 Jan 2009, 04:37

soulsonic wrote:The circuit was purchased by T.C. Electronic.
People who got copies of the original from Stephan when it was still available had to sign a legally-binding non-disclosure agreement regarding the values of the circuit.
That is why you won't find it here or any place else. Sorry, but Mr. Möller was very smart about how to bind people not to share his IP. This is part of the reason why I have no sympathy for the crying bootweaker babies who don't know how to legally protect anything and then throw a fit when it gets exposed.


How does this stop someone from reversing one and posting the info on the web?
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Re: Stephan Möller AC30Simulator

Postby soulsonic » 19 Jan 2009, 04:52

Whoismarykelly wrote:
soulsonic wrote:The circuit was purchased by T.C. Electronic.
People who got copies of the original from Stephan when it was still available had to sign a legally-binding non-disclosure agreement regarding the values of the circuit.
That is why you won't find it here or any place else. Sorry, but Mr. Möller was very smart about how to bind people not to share his IP. This is part of the reason why I have no sympathy for the crying bootweaker babies who don't know how to legally protect anything and then throw a fit when it gets exposed.


How does this stop someone from reversing one and posting the info on the web?

It's not that easy. As far as I know, no hardware versions of this unit have ever been sold. Which means that the only ones available to potentially reverse engineer are the ones built by hobbyists who signed the non-disclosure agreement. So, I'm sure it would be in violation of that agreement for one of those said hobbyists to show gutshot pics which would expose the details of the circuit. I also believe it would be in violation of the agreement for any of those people to sell their units.
You would have to be very sneaky to find a convoluted way to do it without putting one of the hobbyists in jeopardy of being in violation.
The only legitimate way to obtain it now would be to ask T.C. Electronic for permission to publish it. There is a chance they may say yes, since they never pursued a hardware version of it.
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Re: Stephan Möller AC30Simulator

Postby analogguru » 19 Jan 2009, 05:01

That´s a real good question....Anyway, here is your chance to reverse it from the original prototype unit:
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Re: Stephan Möller AC30Simulator

Postby flood » 19 Jan 2009, 05:02

How does this stop someone from reversing one and posting the info on the web?


1. very expensive
2. (probably) all smd
3. used more widely used as a TC powercore software plugin (a.k.a reverse this!)
4. i've never really seen one in physical form :scratch:

i might add that the thing sounds so spot on it's unreal, judging from whatever clips i've heard off the net. möller seems to have been an EE from a german armed forces technical university, and has some stuff on the net regarding non-linear transfer functions, tube transfer function simulation and the AC30.
In the interest of full disclosure, I am Animal Factory Amplification.
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Re: Stephan Möller AC30Simulator

Postby moltenmetalburn » 19 Jan 2009, 05:52

Still no values but get a copy while you can, maybe some of you EEs can guesstimate.

http://www.keyboardpartner.de/hammond/d ... C30sim.pdf
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Re: Stephan Möller AC30Simulator

Postby KB » 19 Jan 2009, 11:08

Hi

Sorry I cannot help with the missing values.

I went as far as making up the boards from the Geo layout, for this project. Only then did I try to contact Stephan Möller to get a copy of the none disclosure agreement and missing component values. Only to find out that it had been pulled about 18 months previously and the values were no longer available. :roll:

Moral of the story, check that it possible to complete the project before wasting Money, time and effort :slap:

To console myself I built a ROG English Channel, but it doesn't sound like the Stephan Möller AC30Simulator.

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Re: Stephan Möller AC30Simulator

Postby Alex Frias » 19 Jan 2009, 14:21

I didn't know about legal implications...

Antway, I'm very interested in AC30 distortion and working in a brazilian forum to work othe ROG MayQueen in order to achieve a more Brian May AC30 + treble booster distorted sounds. I looked after any smart trick to get the right direction to te sound. We all know that MrMay sound is a number of things resulting in his very personal signature sound. But the nature of the distortios is very close to some of the circuits I tested.

A shame we can't find the schematic, but this topic shows some lght to the matter.
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Re: Stephan Möller AC30Simulator

Postby Deric » 19 Jan 2009, 18:01

Try not to be a dick when speaking about others; try not to be pussy when others are speaking of you.
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Re: Stephan Möller AC30Simulator

Postby puppiesonacid » 19 Jan 2009, 18:29

EDIT: never mind....
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Re: Stephan Möller AC30Simulator

Postby Fuzzer » 19 Jan 2009, 18:39

Man, that looks really interesting; I wish I had the knowledge to knock something like that.

There's got to be someone out there who isn't bound by the agreement, no?
The Freestompboxes Forum search function is soo great, use the search function..., the S E A R C H function.
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Re: Stephan Möller AC30Simulator

Postby RnFR » 19 Jan 2009, 19:04

yes, very interesting. what really gets me about the ac30 type tone is not really the top boosted stuff, but when the gain is really piled on, it has a very fuzzy tone with an emphasis on the mids. kind of like the mid boost clip of the TC box. i've been thinking of trying to capitalize on this by designing a germanium fuzz and using ac30 type filtering in between stages. if i were to try this, what would the advantage of the scaled version above be rather than the stock ac30 values?
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Re: Stephan Möller AC30Simulator

Postby Alex Frias » 19 Jan 2009, 19:31

I think it sucks less signal level... That's what I experienced swaping one for another...
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Re: Stephan Möller AC30Simulator

Postby uncleboko » 19 Jan 2009, 19:55

Times change, the original object of using an AC30 was to have a loud, clean sound, preferably with a Watkins Copycat in front!!
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Re: Stephan Möller AC30Simulator

Postby Alex Frias » 19 Jan 2009, 20:03

Well, the same knife May save or kill.

It's a multiface tool, I suppose...
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Re: Stephan Möller AC30Simulator

Postby soulsonic » 19 Jan 2009, 22:36

Deric wrote:http://www.tcelectronic.com/VPD1.asp

Oh, there you go. Looks like I was mistaken.
Now, someone just buy one so we can trace it. :P
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Re: Stephan Möller AC30Simulator

Postby nickthemen » 20 Jan 2009, 02:09

I have the schematics with the right values , maby?? there is a way i can share it with you, there must be !
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Re: Stephan Möller AC30Simulator

Postby soulsonic » 20 Jan 2009, 02:49

nickthemen wrote:I have the schematics with the right values , maby?? there is a way i can share it with you, there must be !

Be careful! You don't want to get in any trouble over something so small!
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