I have a confession to make regarding the puzzle titles. While all RF Cafe crosswords do in fact use only my hand-entered dictionary of terms and clues (literally thousands accumulated over the years) that pertain exclusively to science, engineering, chemistry, physics, mathematics, astronomy, etc., the choice for a particular title is to help attract search engines to the page. There is nothing deceptive going on, just an attempt to exploit the nature of search engine algorithms that rank pages based on meta tags coinciding with relevant keywords and phrases occurring on the page. Enjoy.
Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words 
| 1. Mr. Ohm's first name
5. One port on a BJT (pl.)
10. Ultraviolet (abbr.)
11. Facsimile
13. NASA's manned space capsule series that followed Mercury
16. Alternative name for a pi meson
17. 1/000 of an inch
19. Thing in a bill of material
20. BlackBerry or Palm for example (abbr.)
21. Steel, brass, aluminum, etc.
24. Nuclear explosion byproduct harmful to electronics (abbr.)
25. Akin to an EE, CE, AE, etc.
26. The Microwave Office software company, now NI (abbr.)
27. One port of an amplifier
29. Chemical symbol for argon
30. Carrier-to-noise ratio (abbr.)
31. Chemical symbol for californium
33. Maximum Usable Frequency
35. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
38. Chemical symbol for calcium
40. Steady-state voltage reference
42. Ham radio organization (abbr.)
43. Type of component package (abbr.)
45. Bores a hole
47. Unit of length equal to 5.5 yards
49. Chemical symbol for nickel
50. Exponent that returns the original number
51. Network department (abbr.)
53. Ground fault interrupter (abbr.)
55. CDMA Development Group (abbr.)
56. Opposite of I.D.
58. Online service (abbr.)
60. Creates a code version of a semiconductor device
63. Stock symbol for Harris Communications
64. Title of the magazine where Ralphie stuffs a Red Ryder BB gun ad for his mother to see
66. Early computer display screen resolution (abbr.)
67. Name given to moderator cylinder used in nuclear reactor (pl.)
68. Network device that takes commands from another similar device (pl.)
71. Type of data conversion device (acr.)
73. Front edge of a wing (abbr.)
74. Mr. Packard's (HP) first name
75. _____ conductor | 1. Bushing used to direct the path of a pushrod
2. Electronic Variable Optical Attenuator (abbr.)
3. Portion of EM spectrum below microwaves
4. Software role playing type
6. Chemical symbol for silver
7. Chemical symbol for selenium
8. Electromagnetic interference (abbr.)
9. Real estate where radio equipment is located
12. Transmit Incremental Tuning (abbr.)
14. Electric enclosure standard organization (abbr.)
15. Apply (as a voltage)
16. Parts per million (abbr.)
18. Chemical symbol for lanthanum
21. Microwaves & RF magazine (abbr.)
22. Local Oscillator (abbr.)
23. Add two or more inputs
26. Describes continuously varying signals
28. Heat-shrink ______, for insulating solder joints
30. Co-channel rejection ratio (abbr.)
32. A BPF specification (abbr.)
34. Software storage unit
35. Lines extending out from center
36. Chemical symbol for francium
37. Chemical symbol for einsteinium
39. Analog-to-Digital (abbr.)
41. Chemical symbol for aluminum
44. Chemical symbol for manganese
46. Plural of 47 across
48. Design for Manufacturability (abbr.)
52. Device to assist in the performance of a chore
54. Galilean moon
55. Encases in a protective covering
56. The highest numerical exponent describes this property of a polynomial
57. Satellite TV system
59. Termination
61. Type of current
62. Enhanced Graphics Adapter
63. Majority carrier in p-type material
65. Large unit of apparent power (abbr.)
69. 1.602E-19 Joules
70. Chemical symbol for silicon
72. Chemical symbol for copper |
See solution below
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