December 1965 Popular Electronics
Table of Contents
Wax nostalgic about and learn from the history of early electronics. See articles
published October 1954 - April 1985. All copyrights are hereby acknowledged.
Robert Balin created scores
of electronics-related quizzes for Popular Electronics magazine (see list at bottom of
page). Having appeared in the December 1965 issue, some of the subjects are a bit dated,
but hey, this is an electronics history quiz. I got 80% - yeah, sort of pathetic, but
I don't recall ever hearing of Heising and I couldn't figure out what item "A" was (hint:
it's a TV iconoscope, BTW). That left me with a guess between "A" and "G" for #9 and
#10, which of course I got wrong with a 50-50 chance.
Electronics History Quiz
By Robert P. Balin
Many present-day electronics devices have been
around for a long time, and some still bear the manes of their inventors. Try matching
the names of the well-known scientists listed above (1-10) with drawings A-J of the devices
or circuits they helped develop.
1 Fleming ___
2 Hartley ___
3 Leclanche ___
4 Morse ___
5 Oersted ___
6 Pierce ___
7 Tesla ___
8 Wien ___
9 Zworykin ___
10 Heising ___
See answers below.
Popular Electronics published many quizzes over the years
- some really simple and others not so simple. Robert Balin created many of the quizzes.
This is a listing of all I have posted thus far.
Angle Quiz - September 1967
International Electronics Quiz - July 1967
- Bridge Circuit
Quiz -December 1966
- Diode Function
Quiz - August 1965
- Diagram Quiz, August
- TV Trouble Quiz,
- Electronics History Quiz,
- Scope-Trace Quiz,
Circuit Analogy Quiz, April 1973
Your Knowledge of Semiconductors, August 1972
- Ganged Switching
Quiz, April 1972
- Lamp Brightness
Quiz, January 1969
- Lissajous Pattern Quiz, September 1963
Quizoo, October 1962
- Electronic Photo Album Quiz, March 1963
- Electronic Alphabet Quiz, May 1963
- Quiz: Resistive?
Inductive? or Capacitive?, October 1960
- Vector-Circuit Matching Quiz, June 1970
Quiz, September 1961
- RC Circuit
Quiz, June 1963
- Diode Quiz,
- Electronic Curves Quiz, February 1963
- Electronic Numbers Quiz, December 1962
- Energy Conversion Quiz, April 1963
Function Quiz, June 1962
Electronics Measurement Quiz - August 1967
- Meter-Reading Quiz,
Geometry Quiz, January 1965
Factor Quiz, November 1966
Math Quiz, November 1965
- Series Circuit Quiz,
Electrochemistry Quiz, March 1966
- Electronic Analogy
Quiz, November 1961
Coupling Quiz, August 1973
- Electronics Analogy Quiz, August 1960
- Audio Quiz,
Unit Quiz, May 1962
Capacitor Circuit Quiz, June 1968
- Quiz on AC Circuit Theory, December 1970
- Magnetic Phenomena Quiz, February 1962
- Electronics Geography Quiz, April 1970
Electronic Menu Quiz, August 1963
- Electronic Noise Quiz, August 1962
- Electronic Current Quiz, October 1963
- Electronic Inventors Quiz, November 1963
Function Quiz, January 1962
- Electronic Measurement Quiz, January 1963
Tube Quiz, February 1961
- Kool-Keeping Kwiz, June
History Quiz Answers
1 - H - John A. Fleming applied for a patent for his diode vacuum tube in
1904. It utilized the Edison effect principle discovered 20 years earlier.
2 - B -
Ralph V. Hartley invented the oscillator circuit that bears his name. It uses a parallel-tuned
tank circuit with a tapped coil to provide the feedback voltage.
3 - C - Georges Leclanche invented the dry cell using a solid depolarizer
in 1868. To this day carbon-zinc dry cells are known as Leclanche cells.
4 - I -
Samuel F. Morse and his co-workers, Leonard Gale and Alfred Vail, demonstrated their
electromagnetic relay telegraph in 1838, using the original version of the dot-and-dash
code. The manual key, adopted later, was actually invented by Vail.
5 - D - Hans C. Øersted discovered, in 1819, that a magnetic field existed
around a current-carrying conductor.
6 - F - George W. Pierce was the first to apply a piezoelectric crystal to
a vacuum-tube oscillator circuit. This circuit, which now bears his name, is basically
a crystal-controlled version of the Colpitts oscillator.
7 - J -
Nicola Tesla invented the high-frequency oscillator transformer known as the Tesla
coil in 1891.
8 - E - Max
Wien developed the basic principles of a.c. bridges, and published a collection of
his bridge networks in 1891. The Wien bridge is used to make capacitance and frequency
9 - A - Vladimir K. Zworykin invented the television iconoscope in 1923.
10 - G - Raymond A. Heising developed the constant-current form of plate modulation
that bears his name. This method of modulation is widely used in high-power broadcasting
Posted April 4, 2018