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H. Leslie Hoffman (1906 – June 24, 1971) was an American businessman. He was the founder and CEO of Hoffman Radio from 1941 to 1971, which changed its name to Hoffman
Radio Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmit ...
and
Television Television, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or the medium of television transmission. Television is a mass medium for advertisin ...
in 1948. In the 1950s, he formed Hoffman Electronics Corporation, based in
El Monte, California } El Monte (Spanish for "The Mountain") is a city in Los Angeles County, California, United States. The city lies in the San Gabriel Valley, east of the city of Los Angeles. El Monte's slogan is "Welcome to Friendly El Monte" and is historically ...
, consisting of several electronic divisions involved with consumer, industrial and military products. He was married to Elaine Stevely Hoffman (1906–1989). Together in 1954, they formed the H. Leslie Hoffman and Elaine S. Hoffman Foundation,
Pasadena Pasadena ( ) is a city in Los Angeles County, California, northeast of downtown Los Angeles. It is the most populous city and the primary cultural center of the San Gabriel Valley. Old Pasadena is the city's original commercial district. Its ...
, a
philanthropic Philanthropy is a form of altruism that consists of "private initiatives, for the public good, focusing on quality of life". Philanthropy contrasts with business initiatives, which are private initiatives for private good, focusing on material ...
organization. He and his wife Elaine were large donors and supporters of 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 C ...
(USC) and were directly involved with its growth, academic growth and stature. Hoffman served on the Board of Trustees at USC for 17 years.


Period before Hoffman Radio

Between 1929 and 1931, a company called Mission Bell Radio Manufacturing Company was formed. They were based in
Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world' ...
and specialized in low-cost midget radio receivers. To keep cost down Mission Bell would buy as many prefabricated parts as possible and made a few design changes to established radio chassis to avoid legal action. It was a company that was always in financial problems throughout the 1930s. By 1941 the company filed for
bankruptcy Bankruptcy is a legal process through which people or other entities who cannot repay debts to creditors may seek relief from some or all of their debts. In most jurisdictions, bankruptcy is imposed by a court order, often initiated by the debtor ...
. In 1941, Les Hoffman, then a
fluorescent lamp A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor, which produces short-wave ultraviolet lig ...
salesman, came to the Mission Bell Radio Office to collect an overdue debt. The doors were locked and they were closed for good. Finding out the company went bankrupt, he decided to buy Mission Bell Radio and continue to make radios under the name Hoffman Radio. The company would remain in
Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world' ...
.


Hoffman Radio and Television

For a short while Hoffman would continue the Mission Bell Radio name and designs. By 1947, Hoffman started designing their own models. About 1948–1949, Hoffman began manufacturing television receivers, since
RCA The RCA Corporation was a major American electronics company, which was founded as the Radio Corporation of America in 1919. It was initially a patent trust owned by General Electric (GE), Westinghouse, AT&T Corporation and United Fruit Comp ...
made their television
patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an enabling disclosure of the invention."A p ...
s royalty-free. He aggressively marketed his product regionally, trying to maintain a good regional reputation and recognizable brand name. By 1950
Time magazine ''Time'' (stylized in all caps) is an American news magazine based in New York City. For nearly a century, it was published weekly, but starting in March 2020 it transitioned to every other week. It was first published in New York City on Mar ...
writes about Les Hoffman's achievements in making Hoffman Radio and Television the largest west coast producer of televisions. In two years (1948–1950) Hoffman Radio and Television sales went from $3.5 million to almost $12 million. One of the reason for Les Hoffman's success was in the quality of his products. Hoffman radios and televisions were built well, using proven engineering practices and sometimes applying practices used in military electronics. Hoffman moved into
color television Color television or Colour television is a television transmission technology that includes color information for the picture, so the video image can be displayed in color on the television set. It improves on the monochrome or black-and-white t ...
slowly and by the late 1960s had a full line of consumer products. Hoffman would continue making televisions until 1977.


Hoffman Easy Vision television

When Les Hoffman entered the television manufacturing business, he was a newcomer. He needed to keep his costs down and did not have the resources like the established companies such as
Zenith The zenith (, ) is an imaginary point directly "above" a particular location, on the celestial sphere. "Above" means in the vertical direction (plumb line) opposite to the gravity direction at that location (nadir). The zenith is the "highest" ...
or
Philco Philco (an acronym for Philadelphia Battery Company) is an American electronics industry, electronics manufacturer headquartered in Philadelphia. Philco was a pioneer in battery, radio, and television production. In 1961, the company was purchased ...
. After
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
ended, there was considerable surplus materials that needed to be cleared out of company and government stores. Television picture tubes require a protective safety glass in front of it to prevent injury if the picture tube imploded. Hoffman found large quantities of yellow
Plexiglas Poly(methyl methacrylate) (PMMA) belongs to a group of materials called engineering plastics. It is a transparent thermoplastic. PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Plexiglas, Acrylite, ...
used in aircraft. Since it was low price he bought large quantities. However, the television viewing area had a yellow-green tint to it. During the early years of television there was considerable concerns that long term viewing television could damage one's eyesight due to
eye strain Eye strain, also known as asthenopia (from Greek ''a-sthen-opia'', grc, ἀσθενωπία, ), is a common eye condition that manifests through non-specific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache, and ...
. Hoffman took advantage of this scare by advertising that the yellow-green tinted screen reduced eye strain. He marketed his televisions as "Easy Vision". Les Hoffman definitely was a shrewd and market-savvy businessman.


Hoffman Electronics Corporation

From 1950 to 1960 Hoffman became diversified, through startups and acquisitions of consumer, industrial and
military electronics A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct ...
firms. The company reorganized into Hoffman Electronics Corporation, based in
El Monte, California } El Monte (Spanish for "The Mountain") is a city in Los Angeles County, California, United States. The city lies in the San Gabriel Valley, east of the city of Los Angeles. El Monte's slogan is "Welcome to Friendly El Monte" and is historically ...
, about 15 miles (24 km) east of Los Angeles. Several divisions were formed, of which the most prominent were: *
Consumer A consumer is a person or a group who intends to order, or uses purchased goods, products, or services primarily for personal, social, family, household and similar needs, who is not directly related to entrepreneurial or business activities. T ...
products (Hoffman Radio and Television) *
Semiconductor A semiconductor is a material which has an electrical resistivity and conductivity, electrical conductivity value falling between that of a electrical conductor, conductor, such as copper, and an insulator (electricity), insulator, such as glas ...
products * Military products Since the early days of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
Hoffman produced for the military various items, such as
radar Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, w ...
,
communications Communication (from la, communicare, meaning "to share" or "to be in relation with") is usually defined as the transmission of information. The term may also refer to the message communicated through such transmissions or the field of inquir ...
,
countermeasures A countermeasure is a measure or action taken to counter or offset another one. As a general concept, it implies precision and is any technological or tactical solution or system designed to prevent an undesirable outcome in the process. The fi ...
,
navigation Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navigation, ...
and ASW equipment.


Solar cells

The invention of the
transistor upright=1.4, gate (G), body (B), source (S) and drain (D) terminals. The gate is separated from the body by an insulating layer (pink). A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch e ...
in 1948 must have had an effect on Leslie Hoffman. In the early 1950s, he took a major interest in
solar cell A solar cell, or photovoltaic cell, is an electronic device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.
s, also called photovoltaic cells. When
Bell Labs Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984), then AT&T Bell Laboratories (1984–1996) and Bell Labs Innovations (1996–2007), is an American industrial research and scientific development company owned by mult ...
introduced the solar cell to the world in 1951 it was only a curiosity. It had a very poor light-to-electricity conversion efficiency of 2 percent, and was very fragile and expensive to fabricate. Several manufacturers, including Hoffman, managed to improve the efficiency to 4.5 percent by 1954, but photovoltaic cells were still impractical. Hoffman made great strides in making the solar cell a practical and useful source of
renewable energy Renewable energy is energy that is collected from renewable resources that are naturally replenished on a human timescale. It includes sources such as sunlight, wind, the movement of water, and geothermal heat. Although most renewable energy ...
. From 1957 to 1960, he improved its efficiency from 4.5 to 14 percent and lowered the production cost to make it a marketable item. One of Hoffman's great achievements was the first
satellite A satellite or artificial satellite is an object intentionally placed into orbit in outer space. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioisotope ...
to be powered by solar cells, the Vanguard 1, launched in 1958. The
solar arrays A photovoltaic system, also PV system or solar power system, is an electric power system designed to supply usable solar power by means of photovoltaics. It consists of an arrangement of several components, including solar panels to absorb and c ...
or panels are Hoffman photovoltaic cells. In 1959 H. Leslie Hoffman received the David Packard Medal of Achievement for innovation. In 1959 he was one of the board of directors for the
Electronic Industries Association The Electronic Industries Alliance (EIA; until 1997 Electronic Industries Association) was an American standards and trade organization composed as an alliance of trade associations for electronics manufacturers in the United States. They devel ...
(EIA). The success of
Vanguard 1 Vanguard 1 (Harvard designation: 1958-Beta 2, COSPAR ID: 1958-005B ) is an American satellite that was the fourth artificial Earth-orbiting satellite to be successfully launched, following Sputnik 1, Sputnik 2, and Explorer 1. It was launched ...
led Hoffman to broaden the use of his solar cells into other products and applications. In 1959, the launch of the U.S. satellite
Explorer 6 Explorer 6, or S-2, was a NASA satellite, launched on 7 August 1959, at 14:24:20 GMT. It was a small, spheroidal satellite designed to study trapped radiation of various energies, galactic cosmic rays, geomagnetism, radio propagation in the ...
had solar arrays using 9,600 Hoffman solar cells. Hoffman's Consumer Products Division introduced a transistor radio line that operated with solar cells or batteries. The four models they produced were the P-411 Solaradio (1956), the P-706 Trans Solar radio (1959), the P-709X (1961), and the 719 (1965).


Air navigation systems

Hoffman Electronics Military Division specialized in
air navigation The basic principles of air navigation are identical to general navigation, which includes the process of planning, recording, and controlling the movement of a craft from one place to another. Successful air navigation involves piloting an air ...
, communications and radar systems. Most of the work and design was done in
El Monte, California } El Monte (Spanish for "The Mountain") is a city in Los Angeles County, California, United States. The city lies in the San Gabriel Valley, east of the city of Los Angeles. El Monte's slogan is "Welcome to Friendly El Monte" and is historically ...
. In 1957 Hoffman Electronics became a leader in designing airborne navigation systems, called
Tactical Air Navigation A tactical air navigation system, commonly referred to by the acronym TACAN, is a navigation system used by military aircraft. It provides the user with bearing and distance (slant-range or hypotenuse) to a ground or ship-borne station. It is a mor ...
(TACAN). It is a series of ground- or ship-based transmitter and receiver stations that can provide bearing, slant distance and other related information to any aircraft sending the correct frequency and code. It became a standard navigation system used in U.S. military aircraft, including the U.S.
Space Shuttle program The Space Shuttle program was the fourth human spaceflight program carried out by the U.S. National Aeronautics and Space Administration (NASA), which accomplished routine transportation for Earth-to-orbit crew and cargo from 1981 to 2011. Its ...
. Parts of TACAN can be used for civil aircraft to providing bearing, distance and landing approaches. The development of the
Global Positioning System The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite sy ...
(GPS) will eventually displace TACAN. In the 1960s the Military Products Division continued to grow. They advertised in newspapers, magazines and nearby universities, recruiting engineering students to consider Hoffman as an engineering career. The El Monte site was located near major engineering universities in the Los Angeles County area. Within 20 miles (32 km) circle there was
California Institute of Technology The California Institute of Technology (branded as Caltech or CIT)The university itself only spells its short form as "Caltech"; the institution considers other spellings such a"Cal Tech" and "CalTech" incorrect. The institute is also occasional ...
(Caltech);
University of California, Los Angeles The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California. UCLA's academic roots were established in 1881 as a teachers college then known as the southern branch of the California St ...
(UCLA);
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 C ...
(USC);
California State University, Long Beach California State University, Long Beach (CSULB) is a public research university in Long Beach, California. The 322-acre campus is the second largest of the 23-school California State University system (CSU) and one of the largest universities i ...
(Long Beach State);
California State Polytechnic University, Pomona California State Polytechnic University, Pomona (Cal Poly Pomona, CPP, or Cal Poly"Cal Poly" may also refer to California Polytechnic State University, San Luis Obispo in San Luis Obispo. See the '' name'' section of this article for more info ...
(Cal Poly); and Loyola University.


Relationship with science fiction writer Isaac Asimov

The February 1962 edition of ''
Scientific American ''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many famous scientists, including Albert Einstein and Nikola Tesla, have contributed articles to it. In print since 1845, it i ...
'', published a short story by acclaimed American science fiction writer
Isaac Asimov yi, יצחק אזימאװ , birth_date = , birth_place = Petrovichi, Russian SFSR , spouse = , relatives = , children = 2 , death_date = , death_place = Manhattan, New York City, U.S. , nationality = Russian (1920–1922)Soviet (192 ...
. The title of the work was "
My Son, the Physicist "My Son, the Physicist" is a science fiction short story by American writer Isaac Asimov. It was commissioned by Hoffman Electronics Corporation and appeared in February 1962 in ''Scientific American''. It later appeared in Asimov's collection '' ...
". The work was commissioned by Hoffman Electronics. The story later became part of a collection of Asimov short stories called ''
Nightfall and Other Stories ''Nightfall and Other Stories'' (1969) is a collection of 20 previously published science fiction short stories by Isaac Asimov. Asimov added a brief introduction to each story, explaining some aspect of the story's history and/or how it came t ...
'' in 1969.


After 1977

Six years after Les Hoffman's death in 1971, the board of directors decided to sell the corporation.
Gould Electronics Gould Electronics Inc. was a manufacturer of electronics and batteries that branched into other fields before being partially absorbed in 1988 by Nippon Mining (now JX Holdings) and closed by them in 2014. History Gould was founded in 1928 a ...
purchased most of the divisions in 1978. Gould Electronics was mainly interested in the Military Products Division, which it retained. All other groups were closed or sold. In 1988 the Military Products Division became an independent company called NavCom Defense Electronics Inc. with its home office in El Monte (later moved to
Corona Corona (from the Latin for 'crown') most commonly refers to: * Stellar corona, the outer atmosphere of the Sun or another star * Corona (beer), a Mexican beer * Corona, informal term for the coronavirus SARS-CoV-2, which causes the COVID-19 di ...
). Their Web site still links their roots in Hoffman Electronics. Hoffman Video Systems was the only segment of Hoffman Electronics Corporation that remained with the Les Hoffman legacy. Les Hoffman's son-in-law, J. Kristoffer Popovich, formed Hoffman Video Systems with Robert Jablonski in 1978. Their goal was to supply video products and consultation for industrial and commercial applications. Their home base was in
Glendale Glendale is the anglicised version of the Gaelic Gleann Dail, which means ''valley of fertile, low-lying arable land''. It may refer to: Places Australia * Glendale, New South Wales ** Stockland Glendale, a shopping centre *Glendale, Queensland, ...
, but had operations throughout the US. The company remains in business . The business was purchased by Anderson Video.


Philanthropic work

In September 1954, the H. Leslie Hoffman and Elaine S. Hoffman Foundation was formed. Its purpose was to advance education and education activities. The largest benefactor was the University of Southern California. Their donations and matching contributions totaled over $2.5 million over the years and help shape the future of USC. Major areas of support are in business and medicine. Two buildings are named after them. At the
USC Marshall School of Business The USC Marshall School of Business is the business school of the University of Southern California. It is accredited by the Association to Advance Collegiate Schools of Business. In 1997 the school was renamed following a $35 million donation fr ...
there is the H. Leslie Hoffman Hall. The Elaine S. Hoffman Medical Research Center is at the school of medicine. After the death of her parents, Jane Hoffman Popovich and her husband, J. Kristoffer Popovich, continue the tradition and remain actively involve in the academic growth and stature of USC. Both are USC graduates (Jane Hoffman, BS 1965 and J. Popovich, BS 1965 and MBA 1970). The Jane Hoffman Popovich and J. Kristoffer Popovich Hall at the USC Marshall School of Business is named in their honor.


Family notes

After Les Hoffman died, his wife Elaine continued their involvement of the foundation until her death on August 5, 1989. She was an active donor and supporter of the
Los Angeles County Museum of Art The Los Angeles County Museum of Art (LACMA) is an art museum located on Wilshire Boulevard in the Miracle Mile, Los Angeles, California, Miracle Mile vicinity of Los Angeles. LACMA is on Museum Row, adjacent to the La Brea Tar Pits (George C. Pa ...
(LACMA) and the
Pasadena Art Museum The Norton Simon Museum is an art museum located in Pasadena, California, United States. It was previously known as the Pasadena Art Institute and the Pasadena Art Museum and displays numerous sculptures on its grounds. Overview The Norton ...
. Les and Elaine Hoffman had one daughter, Jane Hoffman, who married J. Kristoffer Popovich. As stated earlier, Popovich would run Hoffman Video Systems as a separate company after the
Gould Electronics Gould Electronics Inc. was a manufacturer of electronics and batteries that branched into other fields before being partially absorbed in 1988 by Nippon Mining (now JX Holdings) and closed by them in 2014. History Gould was founded in 1928 a ...
purchase of Hoffman Electronics in 1977. Two buildings at the University of Southern California bear the Hoffman name. At the USC Marshall School of Business there is the H. Leslie Hoffman Hall. At the school of medicine there is the Elaine S. Hoffman Medical Research Center. Les Hoffman, a resident of
San Marino, California San Marino is a residential city in Los Angeles County, California, United States. It was incorporated on April 25, 1913. At the 2010 census the population was 13,147. The city is one of the wealthiest places in the nation in terms of househol ...
, died abroad in 1971, in
Zürich Zürich () is the list of cities in Switzerland, largest city in Switzerland and the capital of the canton of Zürich. It is located in north-central Switzerland, at the northwestern tip of Lake Zürich. As of January 2020, the municipality has 43 ...
, Switzerland; Elaine S. Hoffman died August 1985 in San Marino. Both are interred at
Rose Hills Memorial Park Rose Hills Memorial Park is located in Whittier, California. It is currently owned and operated by Service Corporation International (formerly, Loewen Group). It claims to be the largest cemetery in North America. Sites ; Mausoleums * Whittier ...
in
Whittier, California Whittier () is a city in Southern California in Los Angeles County, California, Los Angeles County, part of the Gateway Cities. The city had 87,306 residents as of the 2020 United States census, an increase of 1,975 from the 2010 United States ...
.


References


External links


Hoffman 9TEEN Portable
nbsp;– external and internal layout of a late 1950s Hoffman television
Hoffman Easy Vision
nbsp;– 1953 advertisement touting medical claims about television viewing eyestrain * {{DEFAULTSORT:Hoffman, H. Leslie (Les) American business executives History of radio Semiconductor companies of the United States Electronics companies of the United States Navigation system companies Businesspeople in electronics 1906 births 1971 deaths