Hi-Fi Quiz
October 1955 Radio & Television News

October 1955 Radio & TV News

[Table of Contents] Wax nostalgic about and learn from the history of early electronics. See articles from Radio & Television News, published 1919-1959. All copyrights hereby acknowledged.

Here is a quick Hi−Fi Quiz for all you audiophiles out there. Although it appeared in a 1955 issue of Radio & Television News magazine, save for question #10 all of Q's and A's still apply to today's equipment. Even that one can be easily guessed. Q4 might seem a bit foreign, but think of the "groove" type as applying to 78, 45, or 33-1/3 rpm platters and you'll do OK. Question #7 could be a baffler (pun intended - you'll see how) were it not for one obviously invalid option that it takes an RF guy (or gal) to recognize its inanity. Good luck. BTW, I missed Q1, but should have known better. 

Hi-Fi Quiz

By Ed Bukstein

1. An amplifier whose gain is greater for high-amplitude signals than it is for low-amplitude signals is known as:

(a) volume compressor

(b) volume expander

(c) volume limiter

2. The abbreviation "ips" used in reference to tape recording means:

(a) in-phase signal

(b) inches-per-second

(c) inverted polarity switch

3. A loudspeaker designed for high audio frequencies is known as:

(a) a woofer

(b) a puffer

(c) a tweeter

4. A turnover cartridge is used:

(a) to permit playing of either standard or microgroove records

(b) to automatically play both sides of a record

(c) to reverse the motor at the end of a tape recording

5. The process of removing previous recordings from a tape is known as:

(a) squelching

(b) limiting

(c) erasing

6. The circuit used to separate the high and low audio frequencies and to feed them to separate loudspeakers is known as:

(a) a crossover network

(b) a loudness control

(c) a volume expander

7. Which of the following is not a type of loudspeaker enclosure:

(a) infinite baffle

(b) bass reflex

(c) reflex klystron

8. A coaxial loudspeaker is:

(a) any loudspeaker connected to an amplifier by a coaxial cable

(b) two loudspeakers, one inside the other

(c) a type of loudspeaker which can be used on AM but not on FM receivers

9. A control that simultaneously varies both the volume and the frequency response of an amplifier is a:

(a) loudness control

(b) voltage regulator

(c) d.c. restorer

10. A microphonic tube is one with loose elements:

(a) true

(b) false

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.

Answers to "Hi-Fi Quiz"

a. b

2. b

3. c

4. a

5. c

6. a

7. c

8. b

9. a

10. a

Posted October 29, 2020