Search RFCafe.com                           
      More Than 18,000 Unique Pages
Please support me by ADVERTISING!
Serving a Pleasant Blend of Yesterday, Today, and Tomorrow™ Please Support My Advertisers!
   Formulas & Data
Electronics | RF
Mathematics
Mechanics | Physics
     AI-Generated
     Technical Data
Pioneers | Society
Companies | Parts
Principles | Assns
 About | Sitemap
Homepage Archive		         Resources
Articles, Forums Calculators, Radar
Magazines, Museum
Radio Service Data
Software, Videos		      Entertainment
Crosswords, Humor Cogitations, Podcast
Quotes, Quizzes
   Parts & Services
1000s of Listings		  Vintage Magazines
Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post
Software: RF Cascade Workbook
RF Stencils for Visio | RF Symbols for Visio
RF Symbols for Office | Cafe Press
Espresso Engineering Workbook

Aegis Power  |  Alliance Test
Centric RF  |  Empower RF
ISOTEC  |  Reactel  |  RFCT
San Fran Circuits
Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Amplifier Solutions Corporation (ASC) - RF Cafe

Anatech Electronics RF Microwave Filters - RF Cafe

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

Circuit Designer's Name Quiz
July 1968 Popular Electronics

July 1968 Popular Electronics

July 1968 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.

This "Circuit Designer's Name Quiz" appeared in the July 1968 issue of Popular Electronics magazine. As were most of the quizzes, it was created by Robert Balin. Here is some background on the inventors and their circuits that might make matching them a bit easier.

The Clapp oscillator designed by J.K. Clapp is a series-tuned variant of the Colpitts oscillator. The Clapp circuit is noted for its low-drift characteristics.

The Cockroft-Walton high voltage circuit was developed by J.D. Cockcroft and E.T. Walton. It is used in nuclear particle accelerators.

A direct-coupled transistor pair is called a Darlington amplifier. The designer was Sidney Darlington. This circuit increases the input impedance and offers a current gain approximately equal to the product of the separate transistor current gains.

The Eccles-Jordan multivibrator is a bistable circuit designed by William H. Eccles and F.W. Jordan. The circuit is used to subdivide the frequency of incoming pulses by a factor of two.

To convert frequency-modulated r.f. carriers into an amplitude-modulated audio signal, D.F. Foster and Stuart W. Seeley developed the Foster-Seeley FM discriminator.

The Heising modulation circuit designed by Raymond A. Heising is a constant-current form of plate modulation in transmitters.

Lord Kelvin (William Thompson) developed the Kelvin bridge to measure small values of resistance.

The Pierce oscillator designed by George W. Pierce is a crystal-controlled version of the Colpitts oscillator circuit.

The Schmitt trigger was designed by Otto H. Schmitt as a cathode-coupled bistable multivibrator. It is used in squaring circuits.

Originally, the Wien bridge designed by Max Wien was used to measure capacitance in terms of a standard capacitor, or inductance in terms of a standard inductor. Recently, the Wien bridge is seen pore frequently in audio oscillators.

Vector-Circuit Matching Quiz

By Robert P. Balin

Many common electronic circuits bear the name of their inventors. To test your knowledge of these men and their inventions, match the diagrams (A - J) to the names (1 - 10).

Circuit A - RF Cafe

Circuit B - RF Cafe

Circuit C - RF Cafe

Circuit D - RF Cafe

1 Clapp ________

2 Cockcroft-Walton ________

3 Darlington ________

4 Eccles-Jordan ________

5 Foster-Seeley ________

6 Heising ________

7 Kelvin ________

8 Pierce ________

9 Schmitt ________

10 Wein ________

 

Circuit E - RF Cafe

Circuit F - RF Cafe

Circuit G - RF Cafe

Circuit H - RF Cafe

Circuit I - RF Cafe

Circuit J - RF Cafe

 

 

See answers below.

Quizzes from vintage electronics magazines such as Popular Electronics, Electronics-World, QST, Radio-Electronics, 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

Vintage Electronics Magazine Quizzes

 

 

 

 

 

 

 

 

 

 

 

Circuit Designer's Name Quiz Answers

1 - B

2 - D

3 - G

4 - C

5 - H

6 - J

7 - I

8- F 

9 -E

10 - A

 

 

 

Posted January 10, 2022

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
PCB Directory (Manufacturers)

Innovative Power Products Cool Chip Thermal Dissipation - RF Cafe

LadyBug RF Power Sensors