Modular Synth Panels

I'm having deja vu

This was all thrashed out recently in the electro-music.com forums. No need to go into it 
here - just look it up. 

http://electro-music.com/forum/viewtopic.php?
t=29016&sid=0ca77e288677aa0a3dd151ceb5a40cac

Thomas's position is the right one. Yes, he got permission from Don for the first run. 

--- In ModularSynthPanels@yahoogroups.com, "David Vandenberg" <dragonslair@...> 
wrote:
>
> Am I missing something here?
> This is a second run of boards, did you get permission from Don for
> the first run? if so, why would you need permission for a second run
> of the same board?
> On another note, the basic idea and design was Don's, you have
> modified the design and added other aspects to the circuit, so it is
> no longer his design, but yours. 90% of the designs in DIY (and in
> production synth modules) are based on something else, whether it is
> someone else's circuit, a modification of the app notes for the IC, or
> a circuit out of the old Electronotes, it doesn't matter, if you make
> any changes to it, it is now your design, most of my designs are based
> around the chip manufacturers app notes, or a circuit I found in
> Electronotes, so according to your logic I should be asking the chip
> manufacturers for their permission before I get any boards done up, or
> I should spend years trying to track down the guy who submitted the
> circuit to Electronotes 30 years ago, sometimes this "Intellectual
> Property" can be pushed a bit to far. 
> If you want to make a direct clone of a specific module
> (panels,circuit,pcb) then yes, you should get the original designers
> permission, otherwise I see no reason for it.
> 
> My 2 cents worth,
> Dave
>