James Marshall "Jimi" Hendrix (born Johnny Allen Hendrix; November 27, 1942 - September 18, 1970) was an American rock guitarist, singer, and songwriter. Although his mainstream career spanned only four years, he is widely regarded as one of the most influential electric guitarists in the history of popular music, and one of the most celebrated musicians of the 20th century. The Rock and Roll Hall of Fame describes him as "arguably the greatest instrumentalist in the history of rock music". Born in Seattle, Washington, Hendrix began playing guitar at the age of 15.

At Horace Mann Elementary School in Seattle during the mid-1950s, Hendrix's habit of carrying a broom with him to emulate a guitar gained the attention of the school's social worker. After more than a year of his clinging to a broom like a security blanket, she wrote a letter requesting school funding intended for underprivileged children, insisting that leaving him without a guitar might result in psychological damage. Her efforts failed, and Al refused to buy him a guitar.  In 1957, while helping his father with a side-job, Hendrix found a ukulele amongst the garbage that they were removing from an older woman's home. She told him that he could keep the instrument, which had only one string. Learning by ear, he played single notes, following along to Elvis Presley songs, particularly Presley's cover of Leiber and Stoller's "Hound Dog". By the age of thirty-three, Hendrix's mother Lucille had developed cirrhosis of the liver, and on February 2, 1958, she died when her spleen ruptured. Al refused to take James and Leon to attend their mother's funeral; he instead gave them shots of whiskey and instructed them that was how men were supposed to deal with loss. In 1958, Hendrix completed his studies at Washington Junior High School and began attending, but did not graduate from, Garfield High School.  In mid-1958, at age 15, Hendrix acquired his first acoustic guitar, for $5. He earnestly applied himself, playing the instrument for several hours daily, watching others and getting tips from more experienced guitarists, and listening to blues artists such as Muddy Waters, B.B. King, Howlin' Wolf, and Robert Johnson. The first tune Hendrix learned how to play was "Peter Gunn", the theme from the television series of the same name. Around that time, Hendrix jammed with boyhood friend Sammy Drain and his keyboard playing brother. In 1959, while attending a concert by Hank Ballard & the Midnighters in Seattle, Hendrix met the group's guitarist Billy Davis. Davis showed him some guitar licks and later got him a short gig with the Midnighters. The two remained friends until Hendrix's death in 1970.  Soon after he acquired the acoustic guitar, Hendrix formed his first band, the Velvetones. Without an electric guitar, he could barely be heard over the sound of the group. After about three months, he realized that he needed an electric guitar in order to continue. In mid-1959, his father relented and bought him a white Supro Ozark. Hendrix's first gig was with an unnamed band in the Jaffe Room of Seattle's Temple De Hirsch Sinai, but after he did too much showing off, the band fired him between sets. He later joined the Rocking Kings, which played professionally at venues such as the Birdland club. When someone stole his guitar after he left it backstage overnight, Al bought him a red Silvertone Danelectro.

when did he get his first electric guitar
In mid-1959, his father relented and bought him a white Supro Ozark.