[Table 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. As time permits, I will be glad to scan articles for you. All copyrights (if any) are hereby acknowledged.
There are still a lot of
vacuum tube guys out there who might remember enough about them to score well on this quiz that appeared in the
February 1961 edition of Popular Electronics. My own exposure was mainly with airport surveillance and precision
approach radars while in the USAF. We didn't have a lot of the fancy special purpose tubes shown here, but I was
able to guess correctly on some of them based on how the tube is constructed and the response curves. Still, I'm
embarrassed to tell you my overall score. Don, I know you'll do this; tell me your score and I'll tell you mine.
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Vacuum Tube Quiz
By Robert P. Balin
Glancing at a tube's
symbol or one of its constructional features should remind you of the graph of its characteristic curves or its
outward appearance or application. Try to identify the numbered items at left, below, with the corresponding
lettered items at right. Answers are at the bottom.
VACUUM TUBE QUIZ ANSWERS
Kinescope (magnetic deflection type)
Electron-ray "tuning eye" (6E5)
Kinescope (electrostatic deflection)
Pentode with remote cutoff grid Posted 8/17/2012