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WikiCards · Card list · Science cards · Vacuum fluorescent display
Uncommon card · Science
Vacuum fluorescent display, an Uncommon card
A vacuum fluorescent display is a display device once commonly used on consumer electronics equipment such as video cassette recorders, car radios, and microwave ovens.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 67
- DEF
- 61
- Power
- 128
- Wikipedia reads a year
- 42,000
Power 128 (ATK + DEF): stronger than 65 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- A VFD operates on the principle of cathodoluminescence, roughly similar to a cathode-ray tube, but operating at much lower voltages.
- Each tube in a VFD has a phosphor-coated carbon anode that is bombarded by electrons emitted from the cathode filament.
- Each tube in a VFD is a triode vacuum tube because it also has a mesh control grid.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Vacuum fluorescent display article was read about 42,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 67 and blocks with 61: each hit it takes is cut by 24 %.
How to get Vacuum fluorescent display
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 Vacuum fluorescent display in the power ranking, all domains together.
- Fusion cuisineUncommon · Society · ATK 68 DEF 60
- NyasasaurusUncommon · Nature · ATK 67 DEF 61
- Thomas SchellingUncommon · History · ATK 68 DEF 60
- Henry BessemerUncommon · History · ATK 65 DEF 63
- Ronny TuriafUncommon · Society · ATK 67 DEF 61
- 2020 Seattle Seahawks seasonUncommon · Society · ATK 80 DEF 48
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, Vacuum fluorescent display (revision), CC BY-SA 4.0. Photo : Индикатор_ИВ-4.JPG : Gavryuha derivative work: Teslaton, CC BY-SA 3.0, Wikimedia Commons.
