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 1942 Radio-Craft[Table of Contents]
People old and young enjoy waxing nostalgic about and learning some of the history of early electronics. Radio-Craft was published from 1929 through 1953. All copyrights are hereby acknowledged. See all articles from Radio-Craft.
This is a really nice electronic symbols chart that will come in handy for hobbyists who work with vintage electronic equipment. Not only does it have component symbols that a modern chart would not likely contain, but it has three-dimensional sketches of each device. For example, vacuum tube symbols show the tube outline, its socket configuration, and the pinout. If you get nostalgic for some of these old parts, some of them like the knife blade switch and ceramic light socket can be bought a many hardware stores like Lowes*. It's too bad the chart is not in color because it would make a nice picture to frame for a decoration. If anyone with an artistic bent feels compelled to colorize it and send it to me, I'll be glad to make it available to visitors.
* No, I don't own stock in Lowes or receive payment from them. It's quite the contrary, in fact; I've spent thousands there in the last 20 years.
By C.W. Palmer
Posted September 24, 2014