Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
Anritsu Test Equipment - RF Cafe

Noisecom

;

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Electronic Circuit Analogy Quiz
April 1973 Popular Electronics

April 1973 Popular Electronics

April 1973 Popular Electronics Cover - RF CafeTable 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.

In this April 1973 challenge by Popular Electronics magazine's quizmaster Robert Balin, you need to match each electronic circuit on the left with its mechanical analog on the right. Most equivalencies you have probably seen before, like with circuit numbers 7 and 8. The mechanical equivalent for circuit number 5 might be either of two mechanical options, but one of them them is more obviously equated with another circuit. Don't be off-put by the vacuum tubes; simply imagine a transistor there instead. Familiarity with television circuits helps with circuits 2 and 4. The only mechanical equivalent drawing that presents a bit of a problem "getting," IMHO, is letter G. A list of all the quizzes I have posted is given at the bottom of the page.

Electronic Circuit Analogy Quiz

Electronic Circuit Analogy Quiz, April 1973 Popular Electronics - RF CafeBy Robert P. Balin

Electronic circuits perform functions that are similar in many respects to those of common mechanical devices. For example, a rectifier circuit produces unidirectional current while a ratchet and pawl produce unidirectional motion. If you can see an analogy between them, you probably have a good understanding of their operating principles. 

To test your ability to identify analogies, try to match the electronic circuits (1 to 8) on the left below to the related mechanical devices (A to H) which are depicted on the right below.

 

Answers below, No peeking.

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 Quizzes

Vintage Electronics Magazine Quizzes

Vintage Electronics Magazine Quizzes

 

 

1. High-pass filter   --------- H. Flour sieve

2. AGC keyer circuit   ------- E. Lock and key

3. Clipper circuit   ----------- C. Hedge clippers

4. Brightness control   ----- G. Venetian blinds

5. Wave trap   --------------- D. Drain trap

6. Clamping circuit   --------- A. C-clamp

7. Regulator circuit   -------- B. Centrifugal governor

8. Oscillator circuit   --------- F. Metronome

 

 

Posted February 8, 2024
(updated from original post on 10/6/2017)
Axiom Test Equipment - RF Cafe

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    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 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 nice lady's voice announced "You've Got Mail" when a new message arrived...

Copyright  1996 - 2026

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website: AirplanesAndRockets.com

My Daughter's Website: EquineKingdom
Innovative Power Products Passive RF Products - RF Cafe

LadyBug RF Power Sensors

Amplifier Solutions Corporation (ASC) - RF Cafe