RF Cafe Software
About RF Cafe
1996 - 2016
BSEE - KB3UON
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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
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December 1960 Popular ElectronicsTable of Contents
People old and young enjoy waxing nostalgic about and learning some of the history of early electronics. Popular Electronics was published from October 1954 through April 1985. All copyrights are hereby acknowledged. See all articles from Popular Electronics.
It's a little difficult to make out the shape within the crossword puzzle grid, but it appears to be a transistor schematic symbol. Unlike the weekly RF Cafe crossword puzzles, not all of the clues and words are specifically related to science and engineering, but a large percentage of them are. Admittedly, I have the advantage of a software program to help place the words within the grid. Margaret LeFevre did not. Doing it by hand is a lot more work. I can't imagine how the people who created the New York Times' Sunday-size puzzles were able to do it without computer assistance!
By Margaret LeFevre
1 Harvey·Wells T90 is a ________
9 Inclined passageway.
11 Novices are limited to 75 watts ___ abbrev.
14 Code for "Do you have anything for me?"
15 All right: abbrev.
16 In transistors, N is the _______________ of electrons.
18 Diameter symbol seen on mechanical blueprints.
19 State in third amateur district: abbrev.
20 Helpful for mobile operation.
22 Better halves: code.
23 Novice who can't make General Class.
24 One of the "R's" in ARRL.
25 Type of lug.
29 Directional antenna.
31 Swan Island station prefix.
32 _______ Cobb.
33 Components of a tuned circuit: symbols.
35 Modulation used in R/C devices.
37 Type of engineering degree.
38 Initials of your favorite magazine.
39 Control grid is to electron stream as _______ is to river.
41 More cunning.
42 Leyden _____
43 Evenings before.
46 Receiver type.
1 Amplifier tube.
3 Unit of current measurement: abbrev.
4 One of the magnetic poles: abbrev.
5 Radar signals were bounced off this object.
7 Plate voltage: symbol.
8 Sound transducers.
10 Prefix for three.
12 Broad end of a hammer.
16 Pasha of Tunis.
17 An antenna is used to _____ electrical energy.
19 Long distance: abbrev.
20 C.W. signals.
21 What most ham shacks are not.
23 Small amounts of speaker cement.
25 Metal alloy used by experimenters.
26 Alternating current: abbrev.
27 C.W. for "e."
28 Epic poetry.
31 One who operates code-sending device.
34 Natural opening.
36 North latitude: abbrev.
37 "Call Me ___________ ": abbrev.
40 1,000,000: abbrev.
42 Islander with PKI ham prefix: abbrev.
44 Element used in some solid-state rectifiers.
45 Type of antenna impedance network.
Posted July 30, 2014