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"rip off"

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Tre'

In Reply to: RE: I know that posted by Wojciech on December 17, 2024 at 08:53:20

Those are your words. Once the patent is over then it is not a "rip off".

There are many examples of circuits being revived. With tube power amplifiers, the Williamson circuit and the Mullard circuit come to mind. Those circuits have been used over and over again, once the patents ran out, by many amplifier manufactures. Once the patent ran out there was nothing wrong with that and no one has ever expressed a concern over it.

So I really don't get what you're saying.

I'm not even sure there is anything patentable about the EAR preamp. To be patentable a circuit has to be something "new", something truly different and never done before.

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

Follow Ups:

is there anything patentable about Reference Audio research preamp ? - Wojciech 11:03:59 12/17/24 (1)
I very much doubt it. Its very hard to patent any circuit. Are you willing to post the service manual with all Fets clearly marked? Lets say it doesn't have to be the last one (but why not?) but the one before that. How about facilitating a build support and advice for the perfect copy?
- I don't know - Tre' 11:53:13 12/17/24 (0)
  .
  Have Fun and Enjoy the Music
  "Still Working the Problem"

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