September 1969 Popular Electronics
Table of Contents

October 1969 Popular Electronics

Popular Electronics Cover, October 1969 - RF Cafe

Table of Contents

Wax nostalgic about and learn from the history of early electronics. See articles from Popular Electronics, published October 1954 - April 1985. All copyrights are hereby acknowledged.

October 1969

Vol. 31, No. 4

What Does an Op Amp Do?, by John Seginski	68

Posted September 25, 2023

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived...

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September 1969 Popular ElectronicsTable of Contents

September 1969 Popular Electronics
Table of Contents