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Vacuum Tube Crossword Puzzle
November 16, 2014

Note: A standard for crossword puzzles is when all words in a clue are capitalized, the solution is the abbreviation or acronym for that clue; e.g., Alternating Current = AC.
2014 Crosswords Archive
Visit the Crossword Express website - RF CafeTake a break from the drudgery by trying 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.

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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

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