Sir Clive Sinclair Family, Net Worth, Parents, Wife, Children, Death

Sir Clive Sinclair Family

Sir Clive Marles Sinclair was an English entrepreneur and inventor, most commonly known for his work in consumer electronics in the late 1970s and early 1980s.

Name Clive Sinclair
Birthdate ( Age) 30 July 1940
Place of Birth Richmond, United Kingdom
Nationality English
Marital Status  Married
Spouse/Partner Angie Bowness (m. 2010–2017), Ann Briscoe (m. 1962–1985)
Children Belinda Sinclair, Crispin Sinclair, Bartholomew Sinclair
Parents Thora Edith Ella Marles, George William Carter Sinclair
Education St. George’s College, Weybridge
Profession English entrepreneur and inventor
Net Worth $100 Million 
Last Update May 2022

Sir Clive Marles Sinclair was an English entrepreneur and inventor, most commonly known for his work in consumer electronics in the late 1970s and early 1980s.Sinclair Research also produced the TV80, a flatscreen portable mini television utilising a cathode ray tube, however, LCD television technology was in advanced development and the Sinclair FTV1 (TV80) was a commercial flop, only 15,000 units being produced.

Clive Sinclair Family and Parents

Clive Sinclair was born to George Sinclair and Thora Edith Ella Marles in 1940 near Richmond, then in Surrey. He and his mother left London for safety to stay with an aunt in Devon, where they eventually travelled to Teignmouth. A telegram arrived shortly afterwards, bringing the news that their home in Richmond had been bombed. Sinclair’s father found a house in Bracknell in Berkshire.

His brother Iain was born in 1943 and his sister Fiona in 1947.Sinclair’s father and grandfather were engineers; both had been apprentices at Vickers the shipbuilders. His grandfather George Sinclair was a naval architect who got the paravane, a mine sweeping device, to work.

Sinclair attended Boxgrove Preparatory School, excelling in mathematics. By the time he was ten, his father had financial problems. He had branched out from machine tools and planned to import miniature tractors from the U.S.; he had to give up the business.Because of his father’s problems, Sinclair had to move school several times. After a time at Reading School, Sinclair took his O-levels at Highgate School in London in 1955 and A-levels in physics, pure maths, and applied maths at St. George’s College, Weybridge.

Clive Sinclair Wife, Is Clive Sinclair Married

Clive Sinclair was Married and had three children: Crispin, Bartholomew and Belinda.He Married with Angie in 2010.They dated arround 10 years before tying the knot.However the couple Split in 2017.

Clive Sinclair Net Worth

Sir Clive Marles Sinclair was an English entrepreneur and inventor has an estimated Net Worth arround $100 Million in 2021.

Professional Career

In 1961, Sinclair registered Sinclair Radionics Ltd. His original choice, Sinclair Electronics, was taken; Sinclair Radio was available but did not sound right. Sinclair Radionics was formed on 25 July 1961.Sinclair made two attempts to raise startup capital to advertise his inventions and buy components. He designed PCB kits and licensed some technology. Then he took his design for a miniature transistor pocket radio and sought a backer for its production in kit form. Eventually he found someone who agreed to buy 55% of his company for £3,000 but the deal did not go through.

Sinclair, unable to find capital, joined United Trade Press (UTP) as technical editor of Instrument Practice. Sinclair appeared in the publication as an assistant editor in March 1962. Sinclair described making silicon planar transistors, their properties and applications and hoped they might be available by the end of 1962. Sinclair’s obsession with miniaturisation became more obvious as his career progressed. Sinclair undertook a survey for Instrument Practice of semiconductor devices, which appeared in four sections between September 1962 and January 1963.

By the late 1960s and early 1970s, Sinclair Radionics was producing handheld electronic calculators, miniature televisions, and the digital Black Watch wristwatch. The latter product, introduced in 1975, was a significant failure for Sinclair: in additional to being unable to meet demand, the watch itself was found to be inaccurate, its battery life too low, and was difficult to service by users.

While Sinclair was dealing with the NEB and had seen problems developing, he had a former employee, Christopher Curry, establish a “lifeboat” company, called Science of Cambridge Ltd, in July 1977, called such as they were located near University of Cambridge and planned for Curry to develop technology from ideas from the school.

An early product out of Science of Cambridge was a wrist calculator kit which helped to keep the company afloat. By the time that Sinclair had left Radionics and joined Curry at Science of Cambridge, inexpensive microprocessors had started appearing on the market. Sinclair came up with the idea of selling a microprocessor teaching kit, and in June 1978, Science of Cambridge launched the MK14 kit, based on the National SC/MP chip, in June 1978.

In February 1982, Timex obtained a licence to manufacture and market Sinclair’s computers in the United States under the name Timex Sinclair. In April, the ZX Spectrum was launched at £125 for the 16 kB RAM version and £175 for the 48 kB version.The continued success of the computer market continued to help boost Sinclair Research’s profit. In 1982, the company has a pre-tax profit of GB£9.2 million on a turnover of GB£27.6 million. Sinclair himself was estimated to a net value of over GB£100 million in 1983, two years after launching the first of the ZX computers.With the additional funds, Sinclair converted the Barker & Wadsworth mineral water bottling factory into the company’s headquarters in 1982.

By 1990, Sinclair Research consisted of Sinclair and two other employees,and its activities later concentrated on personal transport, the Zike electric bicycle, Zeta bicycle motor and the A-bike folding bicycle. By 1997, Sinclair Research consisted of Sinclair himself.By 2003, Sinclair Research was collaborating with Hong Kong-based firm Daka. A laboratory was set up for Daka near Croydon to develop products on a royalty basis. The two firms collaborated on a Sea Scooter and a wheelchair drive.

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