WikiCards · Card list · Science cards · Mechanical filter
Common card · Science
Mechanical filter, a Common card
A mechanical filter is a signal processing filter usually used in place of an electronic filter at radio frequencies.
- Rarity
- Common
- Domain
- Science
- ATK
- 78
- DEF
- 87
- Power
- 165
- Wikipedia reads a year
- 4,800
Power 165 (ATK + DEF): stronger than 85 % of WikiCards cards.
Mechanical filter quiz: 3 questions
Three questions on the Mechanical filter card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
The filter acts on mechanical vibrations which are the analogue of the ______ signal.
Answer
electrical. The filter acts on mechanical vibrations which are the analogue of the electrical signal. From the Mechanical filter article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Timeline of the COVID-19 pandemic in August 2020. Timeline of the COVID-19 pandemic in August 2020 89 · List of federal judges appointed by George W. Bush 86 · Mechanical filter 78 · Assassination of James A. Garfield 75 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Lens. Lens 20,000 · John B. Cobb 12,000 · Donna Nelson 7,400 · Mechanical filter 4,800 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- Its purpose is the same as that of a normal electronic filter: to pass a range of signal frequencies, but to block others.
- The filter acts on mechanical vibrations which are the analogue of the electrical signal.
- At the input and output of the filter, transducers convert the electrical signal into, and then back from, these mechanical vibrations.
Why it is Common
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Mechanical filter article was read about 4,800 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 78 and blocks with 87: each hit it takes is cut by 35 %.
How to get Mechanical filter
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Mechanical filter in the power ranking, all domains together.
- Pablo HasélCommon · History · ATK 77 DEF 88
- Bryan CoquardCommon · History · ATK 80 DEF 85
- Donna NelsonCommon · Science · ATK 76 DEF 89
- UK Afrobeats Singles ChartCommon · History · ATK 84 DEF 81
- John Meurig ThomasCommon · History · ATK 78 DEF 87
- Robert KeableCommon · Arts · ATK 77 DEF 88
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Mechanical filter (revision), CC BY-SA 4.0. Photo : ja1vbn . Uploaded by Sp in ni ng Spark, CC BY-SA 2.0, Wikimedia Commons.


