Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes App Notes Calculators Education Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising RF Cafe Forums Magazine USAF Radr Shop Sponsor RF Cafe RF Electronics Symbols for Visio RF Electronics Symbols for Office Word RF Electronics Stencils for Visio Thank you for visiting RF Cafe!
Exodus Advanced Communications Best in Class RF Amplifier SSPAs
withwave microwave devices - RF Cafe

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
    Kirt Blattenberger,


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 typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:


TotalTemp Technologies (Thermal Platforms) - RF Cafe

Vacuum Tube Crossword Puzzle
November 16, 2014

Visit the Crossword Express website - RF CafeTake a well-deserved break and try your hand at some of these goodies. Every word in the RF Cafe crossword puzzles is specifically related to engineering, mathematics, and science. There are no generic backfill words like many other puzzles give you, so you'll never see a clue asking for the name of a movie star or a mountain on the Russia-China border.

All of these crossword puzzles were created using the fabulous Crossword Express (now called "Magnum Opus") software.

2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku


December 28
December 21
December 14
December 7
November 30
November 23
November 16
November 9
November 2
October 26
October 19
October 12
October 5

September 28
September 21
September 14
September 7
August 31
August 24
August 17
August 10
August 3
July 27
July 20
July 13
July 6

June 29
June 22
June 15
June 8
June 1
May 25
May 18
May 11
May 4
April 27
April 20
April 13
April 6

March 30
March 23
March 16
March 9
March 2
February 23
February 16
February 9
February 2
January 26
January 19
January 12
January 5

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.


Vacuum Tube Crosword Puzzle, November 16, 2014 - RF Cafe


1. Vacuum tube element placed between control grid and plate in a pentode (2 wds.)
7. Chemical symbol for selenium
8. Electromechanical apparatus used to turn an antenna (pl.)
10. Chemical symbol for argon
12. Part of a FOR loop
13. Amateur Radio Emergency Service (abbr.)
16. Decibels above or below a dipole antenna (abbr.)
17. Automatic network analyzer (abbr.)
19. Dielectric material used to form a hermetic seal for thru-wall conductors
22. Straight line joining the center of a circle to the circumference
26. Stock symbol for Microsoft
28. Create a power supply output w/o a ground reference
30. Chemical symbol for helium
31. Common average used for sinewaves (abbr.)
34. Unit for 1,000,000 watt-seconds (abbr.)
36. Co-channel rejection ratio (abbr.)
37. Online service
38. Mr. Tesla's first name
39. Type of high frequency diode (abbr.)
41. Small unit of capacitance (abbr.)
42. Fail-____ switch
44. Negative temperature coefficient (abbr.)
45. Chemical symbol for polonium
46. Chemical symbol for lead
48. Filter type that blocks lower frequencies (abbr.)
49. Frequency at which XL = XC
54. ____RF, passive RF component manufacturer in Huntersville, NC
55. A common battery cell size
58. Dual Tone Multi-Frequency
59. Army-Navy specification prefix
61. Software engineering tool (abbr.)
63. Compound used in vacuum tube to reduce trace elements of gas (pl.)
64. With 53 Down, part of this website's title
2. One factor of a polynomial
3. Unit of time (abbr.)
4. Equipment
5. Deutsche Industrie Normenausschuss
6. Pulse used to initiate a circuit action
9. Unit of length equal to 5.5 yards (pl.)
11. A disk operation
13. Agilent's EE design software (abbr.)
14. Chemical symbol for tin
15. 36 inches
18. A non-commercial radio service as set by a recognized cognizant government agency (2 wds.)
20. Digital storage oscilloscope (abbr.)
21. Stock symbol for Lockheed Martin
23. Asynchronous Transfer Mode (abbr.)
24. Band between RF and BB
25. FCC's Universal Licensing System (abbr.)
27. Unit of inductance (abbr.)
29. Computer character set (abbr.)
31. Vaccum tube type that permits current flow in only one direction
32. Miniature threaded RF connector
33. Vacuum tube with three electrodes
35. German astronomer who developed a mathematical relationship between planetes and distance from sun (2 wds.)
38. National Television System Committee (abbr.)
40. 300 kHz to 3 MHz
43. Chemical symbol for francium
45. Min-to-max voltage of a waveform (abbr.)
46. Greek letter
47. Ham's code for "Answer in prearranged order."
48. Vacuum tube element that causes free electrons for current flow
50. 1.602E-19 Joules
51. 1e-6 mA
52. Software drafting tool (abbr.)
53. With 64 Across, the world's best engineering website
56. Yttrium Aluminum Garnet
57. Precision approach radar (abbr.)
60. Chemical symbol for neon
61. European equivalent to the U.L.
62. Chemical symbol for einsteinium


See solution below















Vacuum Tube Crosword Puzzle Solution, November 16, 2014 - RF Cafe

Windfreak Technologies SynthHD PRO - RF Cafe

Anatech Electronics (RF Filters) - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free