Radio Corporation today announced the "Royal 500 all-transistor portable
radio." This new portable radio uses seven transistors and weighs
only 19 ounces, yet it is so powerful that it brings in weak, long distant
stations which are ordinarily out of the range of 4-tranisistor miniature
announcing Zenith's first 7-transistor radio to the company's distributors,
L.C. Truesdell, vice president and director of sales, stated that the
battery cost for the Royal 500 is much lower than for the average set
of this type. The Zenith set operates for approximately 1¢ per hour
as compared to 6 to 17¢ an hour for small, compact vacuum tube portables.
power source for this set is four, tiny penlite batteries that are readily
available in many stores for ten cents apiece, he said. The batteries
can easily be replaced in a matter of seconds.
Truesdell explained that the Zenith Royal 500 has an unusual amount of
power output. "As a means of comparison, this new set has 100 milliwatts
of undistorted power output compared to six to twelve milliwatts of undistorted
power output in the usual 4-transistor instruments, and the unusually
sensitive circuitry in the new Zenith portable is the result of the company's
experience in building hearing aids that use transistors as a replacement
for vacuum tubes," he said. "The new circuitry," he added,
"accomplishes previously unheard of economy and takes full advantage
of the improved performance that transistors provide." Zenith is
the largest user of transistors in the United States with the one exception
of the telephone company.
The Royal 500, which is 3-1/2" wide; 5-3/4" high and 1-1/2"
deep, has a non-breakable case of nylon material that withstands severe
impact, Truesdell stated. A convenient 3-position handle swings above
the cabinet for "carry about" use; slides down and back of the
radio to serve as a table support; or jugs the bottom of the cabinet when
the set is tucked into purse or pocket.
The dial is clearly marked with Civilian Defense frequencies. Also the
set has a socket for a handy earphone attachment, optional at slight extra
cost, which plugs into the set for private radio listening and cuts off
the regular speaker, Truesdell said.
Cabinetry is black or maroon color with a gold-colored trim. Suggested
retail price of the receiver, Truesdell said, is $75.00, less batteries.
6001 West Dickens Avenue
Chicago 39, Illinois
Tel: Berkshire 7-7500