RCA's First Commercial Junction Transistors Lucite Block Paperweight (1953) Calculators introduced in 1975

introduced in 1975

Although production of this classic mechanical model wrapped up in 1983

introduced in 1935

"Space Age" style that defined portable electronics of the era

launched in January 2005 for $99

RCA's First Commercial Junction Transistors Lucite Block Paperweight (1953) Calculators introduced in 1975RCA Transistors Memento Two of the First Commercial Junction Transistors, RCA's First Commercially Released Transistors The 1953 RCA transistor Lucite block is a legendary "holy grail" for technology collectors, originally handed out as a high end memento at a pivotal RCA commercial transistor conference in March of that year. At a time when bulky, fragile glass vacuum tubes still powered all electronics, this paperweight served as a physical