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 Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising Magazine Sponsor RF Cafe RF Electronics Symbols for Visio RF Electronics Symbols for Office Word RF Electronics Stencils for Visio Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Anritsu Alliance Test Equipment Amplifier Solutions Anatech Electronics Axiom Test Equipment Berkeley Nucleonics Centric RF Conduct RF Copper Mountain Technologies Empower RF everything RF Exodus Advanced Communications Innovative Power Products ISOTEC KR Filters PCB Directory Rigol San Francisco Circuits Reactel RF Connector Technology TotalTemp Technologies Triad RF Systems Windfreak Technologies Withwave LadyBug Technologies Wireless Telecom Group Sponsorship Rates RF Cafe Software Resources Vintage Magazines RF Cafe Software RF Cafe Sponsor Links Temwell Werbel Microwave Thank you for visiting RF Cafe!
Innovative Power Products Resistors Terminations

Electronic Geometry Quiz
January 1965 Popular Electronics

January 1965 Popular Electronics

January 1965 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.

Unless I find one I missed from my collection of vintage Popular Electronics magazines, this could be the last Friday electronics quiz for a while. All of the quizzes were created by Robert p. Balin, and range in difficulty from relatively easy to head scratchers (for typical test takers like myownself). Sometimes modern readers will be stumped by references to dated drawings and/or terms like vacuum tubes and CRTs (which are themselves vacuum tubes, of course). This Electronics Geometry Quiz might require a Millennial handicap on item "E" if you spaz out over the picture, but if you get the other nine correct, you'll get all ten by default. This is might be the easiest yet (I easily got 10:10). Go ahead and give it a try.

Electronic Geometry Quiz

By Robert P. Balin

Electronics Geometry Quiz (A) - RF Cafe

Electronics Geometry Quiz (C) - RF Cafe

Electronics Geometry Quiz (B) - RF Cafe

Electronics Geometry Quiz (D) - RF Cafe

Often electronic components and circuits are named after their geometrical form or their. characteristic behavior curve. Examples are rhombic antennas, cosine deflection yokes, sine- and square-wave generators, etc. See if you can match the names of the curves and solids (1-10) at right with the drawings of their applications (A-J).

1 Cardioid ___

2 Catenary ___

3 Cone ___

4 Ellipse ___

5 Exponential ___

6 Helix ___

7 Paraboloid ___

8 Polyhedron ___

9 Toroid ___

10 Trapezoid ___

Electronics Geometry Quiz (E) - RF Cafe

Electronics Geometry Quiz (F) - RF CafeElectronics Geometry Quiz (G) - RF CafeElectronics Geometry Quiz (H) - RF Cafe

Electronics Geometry Quiz (I) - RF CafeElectronics Geometry Quiz (J) - RF Cafe

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 Quizzes Vintage Electronics Magazine Quizzes

















Geometry Quiz Answers

1 - J)  Cardioid pattern graphically shows typical directional response characteristics of many good microphones.

2 - C)  Catenary curve is the shape assumed by a long-line antenna freely suspended between two towers.

3 - H)  Cone shape is the most common design for loudspeaker diaphragms.

4 - D)  Ellipse as seen on the screen of an oscilloscope shows the phase relationship between two signals that are essentially the same.

5 - G)  Exponential curve shows graphically the typical charging rate function of a capacitor.

6 - E)  Helix is the shape of the grid winding in many vacuum tubes. Certain antennas for telemetry applications also have a helix-shaped element.

7 - A)  Paraboloid is the shape of "dishes" used as signal-focusing reflectors for microwave equipment.

8 - I)  Polyhedron is the form of multi-faced solid in which mineral crystals such as quartz are found.

9 - B)  Toroid is a doughnut-shaped coil used in computer magnetic memory cores, integrated circuits, and other high efficiency applications.

10 - F)  Trapezoid as seen on the screen of an oscilloscope can be interpreted to reveal the percent of amplitude modulation of a carrier signal.



Posted June 1, 2018

RF Cascade Workbook 2018 - RF Cafe
RF Electronics Shapes, Stencils for Office, Visio by RF Cafe
PCB Directory (Manufacturers)
Amplifier Solutions Corporation (ASC) - RF Cafe

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

These Are Available for Free


About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024


    Kirt Blattenberger,


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...

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: