December 1962 Popular Electronics
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 many quizzes for Popular Electronics magazine back in the 1960s and 1970s. This particular "Electronic Numbers Quiz" presents various objects and your challenge is to match one of the provided numerical values to each item. For example, a tuning fork is most commonly, in the Western world, associated with a certain frequency for tuning musical instruments (electronic and mechanical). As is often the case, being familiar with the "standards" of the era is helpful on a few of the items like the tuning capacitor and the IF transformer, but you should be able to eliminate some options by knowing the impedance of the twin lead transmission line and the phase relationship of current and voltage in a pure inductance.
Electronic Numbers Quiz
By Robert P. Balin
Anyone in electronics gets to know many numbers, each of which relates primarily to some specific circuit or component. Why not try your luck at matching the eight numbers below with the drawings (A - J) to which they most logically refer?
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.
- A Baffling Quiz
- January 1968
- Electronics IQ Quiz
- May 1967
- Plug and Jack Quiz
- December 1967
Switching Quiz - October 1967
Angle Quiz - September 1967
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
Quiz - February 1967
- Unknown Frequency
Quiz - September 1965
Metals Quiz - October 1964
Measurement Quiz - August 1967
- Meter-Reading Quiz,
Geometry Quiz, January 1965
Factor Quiz, November 1966
Math Quiz, November 1965
- Series Circuit Quiz,
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
- Find the
Brightest Bulb Quiz, April 1960
Numbers Quiz Answers
1.414 - F The maximum or peak value of a Sine Wave is 1.414 times its effective or r.m.s value.
3.2 - C A common impedance for Speaker voice coils is 3.2 ohms.
47 - A A type 47 Pilot Lamp is the one almost always found in the "All-American 5" receiver.
90 - H Current through a pure Inductance lags the applied voltage by a quarter of a cycle, or 90 degrees.
140 - G A common maximum capacitance value for a Variable Capacitor is 140 μμf.
180 - B A signal fed into a Vacuum Tube between grid and ground is inverted, or shifted 180° in phase, when observed between plate and ground.
300 - J The impedance of TV and FM Twin Lead is 300 ohms.
440 - E A Tuning Fork used to tune musical instruments vibrates at 440 cycles, or A above middle C.
455 - I A common frequency for an I.F. Transformer is 455 kc.
15,750 - D The frequency of the horizontal sweep oscillator in a TV Set is 15,750 cycles.
Posted June 27, 2019 (original 3/13/2014)