The phrase "a prototype of an" is correct and usable in written English.
It can be used when referring to an initial model or example of something that is being developed or tested.
Example: "The team presented a prototype of an innovative smartphone design at the tech conference."
Alternatives: "a model of a" or "an example of a".
Intel also said it was able to develop a prototype of an XO computer with an Intel chip.
Photo: A prototype of an unmanned helium-filled airship that would serve as a satellite 65,000 feet up was unveiled yesterday in San Bernardino, Calif.
On Wednesday, a mere six months later, the two automakers are set to show a prototype of an all-electric RAV4 at the Los Angeles Auto Show.
Mincome was a prototype of an idea that came to the fore in the sixties, and that is now popular again among economists and policy folks: a basic income guarantee.
In 1937, Jim won a competition to design a prototype of an advanced ticket and luggage handling office for the "big four" mainline railway companies; one was built in Queensway, a second on the Aldwych.
In one gallery room called "Experiments," we see a prototype of an unrealized brainstorm from the late sixties called "Cyclia," a multimedia night club where film would project onto the body of a live dancer.
So a Rice University team recently modified a prototype of an old solar stove to power a simple autoclave, which is a pressure-cooker for instruments, and tested it in the Texas sun.
It also showed a prototype of an Internet-connected desk lamp loaded with a small, downward-facing projector; two people with the lamps could use them to collaborate on drawings or play games together.
Nokia, for example, has produced a prototype of an "ecosensor" phone that can detect and report radiation and pollution.The second reason is that the internet's effects are more widely felt every day.
Dr. Kevin Homewood and his colleagues at the University of Surrey report in the March 8 issue of the science journal Nature that they have developed a prototype of an all-silicon L.E.D. The device converts electricity to light with an efficiency that the inventors say approaches that of some conventional devices made from other semiconductors.
At the recent Consumer Electronics Show in Las Vegas, for instance, Royal Philips Electronics demonstrated a prototype of an Internet radio that was not only capable of naming the band Pearl Jam as its music streamed past but also distinguishing a version of a tune that it played at a concert in Verona, Italy, from the same tune recorded in Milan.
