If the buzz box cost $49.95 we wouldn't be having this thread.
Since it probably costs at least that much to make it, I doubt that they could sell it for that price. I don't know and didn't bother to see if it is UL listed but if so, that testing and certification doesn't come cheap either and will add to the cost.
Now if you really want to get serious about this I don't see any indications that this device is patented. This is probably due the fact this device is somewhat dangerous to use and therefor production for the masses would never occur.
It only took me a few minutes of looking to see that it in fact appears to be a patended device.
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Login is just one of MANY patent links referring to the SF-102 "buzzbox"
I also found it available on a few sites with prices from $150 to $250 and that was only with a brief look. I guess that my question would be if it is so dangerous to use, who would want to use it and who would want to take the responsibility of designing it or releasing such a design?
Also from what I've seen posted about it, folks that are familiar with electronics say it is not designed well or safe.
While that may or may not be true, many have also posted that RJ's stuff is dangerous and doesn't work. Do you take those claims for fact as well?
There is a good possibility that someone here can actually design a safer more cost effective device.
If someone designs a whole new unit that does it a different way that creates as you put it "a safer more cost effective device", then that is a new DIY device but if someone just opens up an existing unit and duplicates it, then they are just stealing an existing design. This is starting to sound and get negative so I'm going to end it here for me now but I would suggest that if any of you wish to persue this endevor, that you do it thru PM's and email. I would really hate to have RJ start getting phone calls from some legal team claiming that DLA appears to be allowing and / or supporting the attempted theft of their clients design.