Rufus Paul Turner (December 25, 1907 – March 25, 1982)
was an academic, engineer, and author who published on semiconductor devices, technical writing style, and poet-novelist
Charlotte Smith. After three decades working with electronic devices – including developing the first practical
transistor radio
A transistor radio is a small portable radio receiver that uses transistor-based circuitry. Previous portable radios used vacuum tubes, which were bulky, fragile, had a limited lifetime, consumed excessive power and required large heavy batteri ...
– he earned a doctorate in literature at age 52 and became an English professor.
He wrote over 40 books and 3000 articles during his six-decade career.
Biography
Born in 1907 in
Houston, Texas
Houston ( ) is the List of cities in Texas by population, most populous city in the U.S. state of Texas and in the Southern United States. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the county seat, seat of ...
, Turner began working with
crystal diode
A diode is a two- terminal electronic component that conducts electric current primarily in one direction (asymmetric conductance). It has low (ideally zero) resistance in one direction and high (ideally infinite) resistance in the other.
A ...
s at age 15 and published his first article on radio electronics at age 17.
He attended
Armstrong Tech in Washington, D.C.
In 1925, still a teenager, he built what was then the world's smallest radio set, and was awarded the second commercial radio operator's license in the
third district.
His station, W3LF, was "the first radio station licensed to a black broadcaster in the U.S." By 1928, he operated W3LF as a 15-watt station on Franklin Street NW in Washington, D.C. He also operated a station for his neighborhood church.

Although he did not initially pursue a college degree, Turner's experience with electronics led him to a variety of engineering positions. He was a licensed professional engineer in
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
and
Massachusetts
Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
.
He taught electronics at a vocational school and the
University of Rhode Island
The University of Rhode Island (URI) is a public land-grant research university with its main campus in Kingston, Rhode Island, United States. It is the flagship public research as well as the land-grant university of Rhode Island. The univer ...
, and business communication at the
University of Southern California
The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in ...
.

Turner was involved with creating the 1N34A
germanium diode
A diode is a two- terminal electronic component that conducts electric current primarily in one direction (asymmetric conductance). It has low (ideally zero) resistance in one direction and high (ideally infinite) resistance in the other.
A ...
at
Sylvania in the 1940s. He began experimenting with germanium transistors soon after their invention in 1947.
In 1949, before transistors were commercially available, he published the popular article "Build a Transistor", considered a "benchmark publication" in amateur radio.
In January 1950, after commercial units were released, he published "A Crystal Receiver with Transistor Amplifier" in ''Radio and Television News'', along with plans for a three-transistor radio circuit. These plans – printed four years before the
Regency TR-1
The Regency TR-1 was the first commercially manufactured transistor radio, introduced in 1954. Despite mediocre performance, about 150,000 units were sold, due to the novelty of its small size and portability. Previously, transistors had only bee ...
(the first commercial transistor radio) – were the first time most amateur radio operators were introduced to transistors as viable radio components. He continued development of his pocket-size radios as superior transistors became available, culminating in the 'widely read' "Transistor Portable with a ''Punch''", an 'ambitious' four-transistor non-superheterodyne AM radio published in ''
Popular Electronics
''Popular Electronics'' was an American magazine published by John August Media, LLC, and hosted at TechnicaCuriosa.com. The magazine was started by Ziff-Davis Publishing Company in October 1954 for electronics hobbyists and experimenters. It so ...
'' in 1956.
Over sixty years, Turner published a variety of electronics articles and technical books aimed at both amateurs and professionals. While many early publications on semiconductors focused on theory, his were largely application-based. His semiconductor work included practical guides to components like
integrated circuits
An integrated circuit (IC), also known as a microchip or simply chip, is a set of electronic circuits, consisting of various electronic components (such as transistors, resistors, and capacitors) and their interconnections. These components a ...
,
solar cells
A solar cell, also known as a photovoltaic cell (PV cell), is an electronic device that converts the energy of light directly into electricity by means of the photovoltaic effect. ,
zener diodes
A Zener diode is a type of diode designed to exploit the Zener effect to affect electric current to flow against the normal direction from anode to cathode, when the voltage across its terminals exceeds a certain characteristic threshold, the ''Z ...
,
varactor
A varicap diode, varactor diode, variable capacitance diode, variable reactance diode or tuning diode is a type of diode designed to exploit the voltage-dependent capacitance of a reverse-biased p–n junction.
Applications
Varactors are used ...
s,
thermistors
A thermistor is a semiconductor type of resistor in which the resistance is strongly dependent on temperature. The word ''thermistor'' is a portmanteau of ''thermal'' and ''resistor''. The varying resistance with temperature allows these devices ...
,
varistor
A varistor (a.k.a. voltage-dependent resistor (VDR)) is a surge protecting electronic component with an electrical resistance that varies with the applied voltage. It has a nonlinear, non- ohmic current–voltage characteristic that is similar ...
s, and
field-effect transistors
The field-effect transistor (FET) is a type of transistor that uses an electric field to control the Electric current, current through a semiconductor. It comes in two types: JFET, junction FET (JFET) and MOSFET, metal-oxide-semiconductor FET (M ...
. He also wrote on
technical writing
Technical writing is a specialized form of communication used by many of today's industrial and scientific organizations to clearly and accurately convey complex information to a user. An organization's customers, employees, assembly workers, engin ...
, electronics testing and
oscilloscope
An oscilloscope (formerly known as an oscillograph, informally scope or O-scope) is a type of electronic test instrument that graphically displays varying voltages of one or more signals as a function of time. Their main purpose is capturing i ...
s,
impedance,
oscillator
Oscillation is the repetitive or periodic variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples of oscillation include a swinging pendulum ...
s, and hobbyist electronics projects, and authored an elementary calculus textbook.
Although his work was primarily in electronics, Turner had varied interests and decided in the mid 1950s to turn his attention to literature. He earned his BA from
California State College at
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
in 1958 and his
MA in English from the
University of Southern California
The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in ...
in 1960.
He was hired in 1960 as an English professor at CSC.
His 1966 thesis at U.S.C. for his
PhD
A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...
analyzed the life and writings of Charlotte Turner Smith.
Turner taught at California State College until 1973, but continued to publish in electronics. He died in March 1982.
References
Further reading
*James A. Page and Jae Min Roh ''Selected Black American, African, and Caribbean Authors'' Littleton, Co.: Libraries Unlimited, 1985
*''Directory of American Scholars'' 6th Ed. (New York: R. R. Bowker, 1974
{{DEFAULTSORT:Turner, Rufus
1982 deaths
1907 births
People from Houston
American technology writers
California State University, Los Angeles alumni
University of Southern California alumni
20th-century American non-fiction writers
African-American non-fiction writers
Writers from Texas
20th-century African-American writers