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Hi-Fi Quiz
October 1955 Radio & Television News

October 1955 Radio & TV News
October 1955 Radio & Television News Cover - RF Cafe[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

Hi-Fi Quiz, October 1955 Radio & Television News - RF CafeBy 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.

RF Cafe Quizzes Vintage Electronics Magazine Quizzes



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

Temwell (RF components)

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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...

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