[ARC5] More Information on Fair Use| U.S. Copyright Office

[Dennis DuVall]

Hmmm....  Sounds like we all should have long since been sued or  
jailed!   :^(

Dennis DuVall
Glendale, CA

******************

On Oct 16, 2015, at 11:09 PM, Brian wrote:

> Hello Phillip,
>
> Using the internet to ask for freebies invites a form of resale over  
> which you have no control - other list members may download the  
> circuit and not be as scrupulous as you. You may well make something  
> based on the circuit, with no intention of sale let alone profit;  
> but when your estate is liquidated, will there be a copyright  
> warning? I'm not even sure that you need to resell an item if the  
> court can be satisfied that you intended to avoid paying for the  
> published item. A quick check on whether the item is still in  
> copyright might relieve your soul ...
>
> Building alternate power supplies for Command sets has been a major  
> driver for many experimenters; they may publish the circuit, but not  
> provide performance details, eg, what is the regulation, ripple,  
> temperature rise, life of the components (MTBF), risk of downstream  
> damage if it fails? Examples abound in 73 Amateur Radio Today (now  
> deceased) and in the three-volume set by Evanson and Beech covering  
> 'emancipation' of WWII surplus radio equipment. Should you get an HT  
> SMPS to work, then you will face the dilemma of publishing or making  
> design and performance details freely available.
>
> You may also want to get in touch with Dave Stinson, who has carried  
> out a great deal of experimenting with Command sets, running Rxs at  
> quite low HT, such as 90V, and publishing his results on the arc5  
> list. I have added his email address as a cc so you can contact him.  
> Lovely fellow.
>
> On Saturday, October 17, 2015 4:15 PM, you said:
>
> Hi Brian,
>
> I have found an open source circuit diagram for a 180vdc converter  
> that should work for my needs to build a power source for B+ so I  
> don't need the circuit in question.
>
> Before I retired, I managed the Technology Transfer Program for the  
> U.S. Department of Energy at one of its National Laboratories and am  
> well aware of the laws governing intellectual property, including  
> fair use.
>
> I'll not go into further discussion of the subject as there are many  
> view points. I wasn't intending any harm to either the author or  
> publisher as I had no intention to sell or even use the information  
> as-is but was wanting to see the general design so as to guide the  
> building of a similar power source but at differing voltages and  
> using differing components to power my own Command Set radios. I  
> definitely had no intention of theft of property as you imply. If I  
> were to have used the information exactly as published to replicate  
> an exact power source to sell to others for profit then I would  
> consider it theft. The same rules apply to patent law. The  
> information can be shared for educational use but one may not use  
> such information to build and sell like property for profit based on  
> the information learned.
>
> I have since located other circuits at voltages closer to my needs  
> that were available open source to use as guides in designing my own  
> power circuit for my personal radios.
>
> Thank you for sharing your view point.
>
> Respectfully,
>
> Phillip
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