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.
A score of 80% is nothing to
brag about, but at least I got all the easy ones right. A couple ones I guessed at based
on how the circuit looks - like the 'gimmick' coupling. This quiz by Popular Electronics'
quizmaster Robert P. Balin tests your knowledge of coupling circuits. If it had not
been for studying for my Ham radio tests, I would not have recognized the gamma match
circuit. Fewer and fewer people nowadays - at least as a percentage of those engaged in
electronics - are familiar with the detailed level of design. Entire products can be
designed nowadays using just integrated circuits and, usually, a little software code.
Electronic Coupling Quiz
By Robert P. Balin
Many types of coupling circuits are employed in electronics to meet matching requirements
in feedback networks and between amplifier stages. Others are used between amplifiers and
speakers, transmission lines, or antennas. Test your knowledge of coupling circuits and devices
by matching those shown in A-J with their names numbered 1 to 10 at the right.
The answers
are below.
1. Balun
2. Direct coupling
3. Emitter coupling
4. Gamma coupling
5. Gimmick, or capacitive, coupling
6. Impedance coupling
7. Link coupling
8. RC coupling
9. "Tickler," or inductive, coupling
10. Transformer coupling
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See answers below.
Quizzes from vintage electronics magazines such as Popular
Electronics, Electronics-World, QST, and Radio News were published
over the years - some really simple and others not so simple. Robert P. Balin
created most of the quizzes for Popular Electronics. This is a listing
of all I have posted thus far.
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 typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
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