RF Cafe Software
About RF Cafe
1996 - 2022
BSEE - KB3UON
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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
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December 1958 Popular ElectronicsTable of Contents
People old and young enjoy waxing nostalgic about and learning some of the history of early electronics. Popular Electronics was published from October 1954 through April 1985. All copyrights are hereby acknowledged. See all articles from Popular Electronics.
A few days ago I posted an old ad for Radio Shack and mentioned the tube testers that used to be in the stores for customers to use free of charge. Of course they also had a nice stock of replacement tubes for you to buy if needed. This advertisement for a typical tube tester by Century Electronics appeared in the December 1958 edition of Popular Electronics. According to the U.S. Bureau of Labor Statistics' inflation calculator, that $134.50 price in 1958 (the year I was born) would be equivalent to $1,080.50 in 2013 money - not too bad really especially since today such a contraption would be built in China.
Century Electronics Vacuum Tube Tester Advertisement
Posted March 18, 2013