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A hamburger celebration

Irving Langmuir (1881-1957): World's Foremost Scientist | John Ambrose Fleming (1849-1945): The Birth of Electronics | Very happy thought | Karl Ferdinand Braun (1850-1918): Inventor of the oscilloscope | Rectification | Barriers, defects, emission, diodes and noise | Three-halves law | Schottky diode | Jack St Clair Kilby (born 1923): inventor of the integrated circuit | Pretty damn cumbersome. |


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Once they had started, many ideas and variations on ideas tumbled out of their minds. So much so that on June 5, 1937, Russell decided to sit down and classify them all to ensure nothing was overlooked. It was whilst doing his classification that the fundamental idea for the klystron, the velocity grouping or hunching principle, struck him. Sig remembered the date clearly.

With a determined struggle they completed the design and built the first klystron, overcoming many problems on the way. The completion of the first hand-filed hexagonal grids called for a hamburger celebration. Building their own detection and measuring equipment proved to be another important problem: and solved it was. In two months the Model A 10 cm klystron, encased in a vacuum bell jar, was working - intermittently on August 19. 1937. By the 30th the device had been rebuilt and gave continuous operation at 13cm. It had cost $50 of Stanford's money.

Up to then the device had been known as the "thing", the "can" and the "spittoon". A respectable name was needed. "Tron" was a common suffix for a vacuum tube and "klyso" was chosen as representing the hunching of waves on a beach, hence klystron.

Further detailed development work was needed. Instead of just three men (Russell, Sigurd and Bill Hansen) a whole team was now involved and a lot more effort and money was needed. Sperry Gyroscope agreed to fund the work with up to $25 000 a year. Suddenly it was big business. The relationship with Sperry, industrial production and war-time use of klystrons are stories in themselves. The brothers were not cut out to accept direction of their ideas and their work from others and the relationship with their new employer involved several conflicts. Facilities were moved from California to the East Coast. Russell was engrossed in the vital patent applications and Sigurd's terrier approach to his work brought more tuberculosis and wrote him off for almost another year. At one stage, it was rumoured that Sperry wanted to buy the patents and sack the pair of them. It is not surprising that the brothers and their friends laid plans for their own post-war research laboratory.

In mid-1946 Russell returned to Pale Alto, depressed by the failure of his five-year-old marriage. But things were about to improve. He took great joy from hiking and camping and in 1946 he married a fellow camper, Dorothy. This marriage lasted until his death in the great outdoors of Alaska on July 28,1959.

The time had come for the long-discussed laboratory to become a reality. Russell found a suitable building measuring 30 by 40 feet on an unpaved street in San Carlos. It was cheap. On April 20,1948, Varian Associates became a legal reality. Sigurd arrived in May "full of energy and enthusiasm". A sum of about $45 000was needed of which the partners could contribute only $23000. A new recruit added $5000 but that still left them $17 000 short Their distrust for big business ruled out going to financiers and it was Bin Hansen who once again stepped in to help. Hansen was then a sick man and would not live another year, but he provided the remaining money, possibly by mortgaging his house. Varian Associates was established.

Honours came their way, including medals from the Franklin Institute and an honorary doctorate for Russell, who had been denied the chance to work for one. Sigurd continued to be plagued by poor health and in later years he spent more and more time in semi-retirement at his home in Mexico, building a workshop and inventing.

On 18 October, 1961, he was flying parts for his workshop back to his Mexican home. It was dark and the airport lights were out. He decided to land on the beach, crashed and was killed. It was probably the way the great adventurer would have wanted to go.

 

 


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