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Peter Carl Goldmark

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Peter Carl Goldmark (1906–1977) was a Hungarian-born American engineer who worked at CBS Laboratories, where he led the team that developed the 33⅓-rpm microgroove long-playing record, introduced by Columbia Records in 1948. He also contributed to color television research, including the CBS field-sequential color system demonstrated in the 1940s, and later worked on video disc and agricultural technology projects.

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What did Peter Carl Goldmark invent?

Peter Carl Goldmark led the team at CBS Laboratories that developed the 33⅓ rpm long-playing (LP) record for Columbia Records, introduced in 1948. The LP revolutionized the recorded music industry by greatly extending playback time compared to the 78 rpm shellac discs then in use.

Where was Peter Carl Goldmark born, and how did he come to work in the United States?

Goldmark was born in Hungary and later emigrated to the United States, where he built his career as an engineer at CBS. He was part of the wave of European-born scientists and engineers who contributed to American technological innovation in the twentieth century.

How did Goldmark's LP record differ from previous formats?

The 33⅓ rpm LP used microgroove technology and vinyl-based material to achieve roughly 20 to 25 minutes of audio per side, far surpassing the 3 to 5 minutes of standard 78 rpm discs. Introduced by Columbia Records in 1948, it became the dominant album format for decades.

Did Peter Carl Goldmark work on inventions besides the LP record?

Goldmark was a prolific inventor at CBS Laboratories who also contributed to the development of a color television system and later worked on educational technology and highway safety systems. His career spanned audio, video, and broader communications engineering well beyond the LP.

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