• on Education & Information
  • Published in issue 10/2009 on page 76
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Philbrick K2-W, the mother of all op amps

RETRONICS section

Philbrick K2-W, the mother of all op amps
One popular belief among the all-transistor generation of electronics enthusiasts is that operational amplifiers (op amps) came after engineers learned to put many transistors on a chip carrier. In fact, op amps are much older.
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