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 LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products

ConductRF Phased Matched RF Cables - RF Cafe

Temwell Filters

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

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Innovative Power Products Couplers

Familiar Quantities and Subjects Technical Challenge

Familiar Quantities and Subjects Technical Challenge - RF Cafe88 K on a P. 27 V of H K. 24 H in a D. Do you remember those kinds of puzzles where you have to figure out what is being referred to? The first one is 88 Keys on a Piano, the second 27 Varieties of Heinz Ketchup, and the last is 24 Hours in a Day. If you like tackling such challenges as associating familiar quantities with their corresponding subjects, then you'll want to check out the list I created below that all have science and engineering themes. If this proves to be popular, I'll do another - hopefully including suggestions from y'all. Good luck. The answers are at the bottom of the page.

  • 88 C in the S
  • 1 C G in a T V T
  • 5/8 C D per F D
  • 2 S J in an NPN T
  • 3 D per F of 2 (P)
  • 6 D per F of 2 (V)
  • 16 O in a P
  • 2 P C in a L L
  • 2080 M-H in a M-Y
  • 6 S M
  • 180 D around the S C
  • 4 Q in a C C G
  • 9 P in the S S (I P)
  • 17 E P in the S M
  • 98 E in the P T (N-O)
  • An O per F of 2
  • 2 P in a C
  • T D in 1948 by B, B and S
  • 3 R in a P or T A
  • 75 O C I of an F-T C C
  • 1 C per S in a H
  • 4 S on a Q A
  • 3 P on a C
  • 2 M L on a D-S P C B


Engineering & Science Humor - RF CafeThese engineering and science tech-centric jokes, song parodies, anecdotes and assorted humor have been collected from friends and websites across the Internet. I check back occasionally for new fodder, but it seems all the old content is reappearing all over (like this is). The humor is light-hearted and clean and sometimes slightly assaultive to the easily-offended, so you are forewarned. It is all workplace-safe.

Humor #1, #2, #3














  • 88 Constellations in the Sky
  • 1 Control Grid in a Triode Vacuum Tube
  • 5/8 Centigrade Degree per Fahrenheit Degree
  • 2 Semiconductor Junctions in an NPN Transistor
  • 3 Decibels per Factor of 2 (Power)
  • 6 Decibels per Factor of 2 (Voltage)
  • 16 Ounces in a Pound
  • 2 Parallel Conductors in a Ladder Line
  • 2080 Man-Hours in a Man-Year
  • 6 Simple Machines
  • 180 Degrees around the Smith Chart
  • 4 Quadrants in a Cartesian Coordinate Graph
  • 9 Planets in the Solar System (Including Pluto)
  • 17 Elementary Particles in the Standard Model
  • 98 Elements in the Periodic Table (Naturally-Occurring)
  • An Octave per Factor of 2
  • 2 Plates in a Capacitor
  • Transistor Discovered in 1948 by Bardeen, Brattain and Shockley
  • 3 Resistors in a Pi or Tee Attenuator
  • 75 Ohm Characteristic Impedance of an F-Type Coaxial Connector
  • 1 Cycle per Second in a Hertz
  • 4 Sides on a Quad Antenna
  • 3 Ports on a Circulator
  • 2 Metal Layers on a Double-Sided Printed Circuit Board






Posted  February 8, 2015

Innovative Power Products Couplers
RF Cascade Workbook 2018 by RF Cafe

Copper Mountain Technologies (VNA) - RF Cafe

Windfreak Technologies Frequency Synthesizers - RF Cafe