At the age of eight, Les Paul began playing the harmonica.
After learning the piano, he switched to the guitar. During
this time he invented a neck-worn harmonica holder.

Les Paul (Lester William Polsfuss)
(June 9, 1915 – August 12, 2009) 

Paul, was a jazz, country, and blues guitarist, songwriter, and
inventor. He was one of the pioneers of the solid-body electric
guitar, and his prototype, called the Log, served as inspiration
for the Gibson Les Paul. Paul taught himself how to play guitar,
and while he is mainly known for jazz and popular music, he
had an early career in country music. In the 1950s, he and his
wife, singer and guitarist Mary Ford, recorded numerous records,
selling millions of copies.

Paul is credited with many recording innovations. His early
experiments with overdubbing (also known as sound on
sound), delay effects such as tape delay, phasing, and
multitrack recording.          
         

His licks, trills, chording sequences, fretting techniques, and
timing set him apart from his contemporaries and inspired
many guitarists of the present day. (From Wikipedia)

      
      
      
      
      
     

Les (with wife, Mary Ford) in their home recording studio.

The 8-track tape technology was popular from the mid-1960s to
the early 1980s.

Inventor George Eash invented a design in 1953, called the
Fidelipac cartridge, also called the NAB cartridge.    

The Lear Jet Stereo 8 cartridge was designed by Richard Kraus
while working for the Lear Jet Corporation.

George Eash (1927 – 2006)

Vintage Truetone Portable Radio, Model D3840, AM Band, 6 Vacuum Tubes.   

Truetone was the private label radio, television and electronics
brand of Western Auto Supply Company of Kansas City,
Missouri.

In the late 1920s, radio was taking the country by storm and
Western Auto was looking for new items to add to its line of
merchandise.

After selling radio tubes under its "Wizard" brand in the 1920s,
the company offered its first Truetone brand radios in 1931.
 

The Westinghouse Electric Corporation was a manufacturing
company founded in 1886 by George Westinghouse. it was
originally named Westinghouse Electric & Manufacturing
Company, and renamed Westinghouse Electric Corporation
in 1945. The company acquired the CBS television network
in 1995, and was renamed into the first incarnation of CBS
Corporation before being acquired by Viacom in 1999, and
completed in April 26, 2000.