Electrical Engineering Crossword (Issue 299)

The answers to Circuit Cellar’s June 2015 electrical engineering crossword puzzle are now available. 299-Grid-(key)

Across

  1. CURRENT—Eddy
  2. LUMEN—A lux is one per square meter
  3. KILBY—Nobel prize for physics in 2000
  4. EXABIT—1,000,000,000,000,000,000 bits
  5. ARITY—Programming term for the number of arguments or operands a function or operator takes
  6. PION—Pi meson
  7. STATOHM—Five of these equals approximately 4.5 × 1012 ?
  8. LIN—Bus system for automotive networks
  9. PATCH—Supplemental software as a fix
  10. BITERROR—Incorrect reading of a bit [2 words]

Down

  1. XTAL—Crystal
  2. MINIMA—Lowest point in the domain of a function
  3. FLEMING—Electrical engineer (1849–1945) who designed the thermionic valve
  4. HERTZ—Cycles/second
  5. BAT—BATCH FILE
  6. TRIVALENT—A valence of 3
  7. ANECHOIC—Absent of sound
  8. FILTER—Blocks or allows to pass
  9. GND—Ground
  10. ACID—pH < 7

Electrical Engineering Crossword (Issue 298)

The answers to Circuit Cellar’s May 2015 electrical engineering crossword puzzle are now available.298-crossword-grid-(key)

Across

  1. ATTOSECOND—10-18 of a second
  2. SHIELDING—A barrier of conductive or magnetic matter
  3. HAPTIC—Relating to touch
  4. BEAMFORMING—Signal processing for sensor arrays
  5. SCRIPT—A sequence, instructions
  6. TRIMPOT—A small potentiometer used for making preset adjustments in a circuit
  7. LUX—Light intensity
  8. DEMAGNETIZE—Degauss
  9. XENON—Xe
  10. COAXIAL—Sharing the same axis
  11. DECIBEL—0.1 bel

Down

  1. CENTIMETER—0.3937 inches
  2. CATWHISKER—Flexible sharp wire that connects to a semiconductor crystal’s surface [two words]
  3. FEMTO—0.000000000000001
  4. SUBSONIC—Less than 15 Hz
  5. IMPULSE—An abrupt burst of signal energy
  6. ALTERNATOR—Mechanically driven generator of AC electricity
  7. HOMEBREW—DIY, homemade
  8. AMPHOUR—Current flow over time
  9. BAUD—200 bits per second = 200 what?

Electrical Engineering Crossword (Issue 297)

The answers to Circuit Cellar’s April 2015 electrical engineering crossword puzzle are now available.297-puzzle-(key)

Across

  1. RELAY—A switch actuated by another electrical signal
  2. OFFSET—A permanent deviation from the design center of any device or circuit
  3. DIP—A component for a PCB use that has pins arranged in two parallel rows
  4. DECIBEL—1/10th of a Bel
  5. ENCODE—Convert analog information to digital data
  6. DAMP—Suppress a resonance by absorbing stored energy through the application of mechanical or electrical friction
  7. DELIMIT—To define or set limits on the boundaries of something
  8. LOOP—Two electrically conductive paths carrying the same signal
  9. CHARGE—State of having a stored excess or deficiency of electrons, which imparts electrostatic polarity to a capacitor or object
  10. DECIMALS—10.1 mal equals 10 what?
  11. OVERSHOOT—The tendency for a rapidly increasing or decreasing electrical impulse to exceed momentarily its actual peak level

Down

  1. CENTIMETER—0.3937 inches
  2. COAXIAL—Sharing the same axis
  3. FIELD—A volume of space through which any radiated energy is distributed
  4. DETECTOR—A circuit that extracts the modulations from a carrier
  5. CELL—An electrochemical unit for producing DC electricity
  6. CARDIOID—Heart-shaped
  7. PATCH—Reroute a signal to a different circuit
  8. JOULE—An “erg” is a unit of work equal to 1–7 of these
  9. FRAME—A digital signal comprises a series of these

Electrical Engineering Crossword (Issue 295)

The answers to Circuit Cellar’s February 2015 electrical engineering crossword puzzle are now available.295puzzle

Across

2. COMMON—A connection or conductor that a number of circuits share
5. TRIODE—Comprises a cathode, plate, and control grid
6. SKINEFFECT—The tendency for electrons at high frequencies to travel along the surface of a conductor [two words]
7. IBM—Big Blue
9. PASCAL—Pa
10. SHEATH—Tube that protects a bundle of wires
15. AVOGADRO—6.0221415 × 1023 atoms/mole
17. CONDENSER—A capacitor
18. MEGA—M
19. QFACTOR—Measures the damping of resonator modes

Down

1. BIDIRECTIONAL—Figure-8
3. OSCILLATION—Self-sustaining generation of a continuous electrical signal
4. SELFBIAS—Cathode bias [two words]
8. MANCHESTER—In this code, common in telecommunications, each bit of data is represented by at least one voltage level transition.
11. WIREWOUND—WW
12. TANGENT—Straight line that touches a circuit a single point
13. MALE—Hot signal connector
14. FERROUS—Containing iron
16. OHMSLAW—R = V/I [two words]
17. CBAR—0.01 bar

Electrical Engineering Crossword (Issue 294)

The answers to Circuit Cellar’s January 2015 electronics engineering crossword puzzle are now available.294-crossword-(key)

Across

  1. SHIELD—Conductive cover that isolates equipment from electromagnetic interference
  2. TRIMPOT—SMALL POTENTIOMETER FOR MAKING PREDETERMINED MODIFICATIONS IN A CIRCUIT
  3. NINE—A nonet is a grouping of what?
  4. LIMITER—A device that prevents signal peaks from exceeding max levels
  5. HERTZ—One cycle per second.
  6. DIP—Dual inline package
  7. QUALITYCONTROL—QC
  8. MOCKUP—Non-working model of a system
  9. PETABYTE—1 quadrillion bytes
  10. PATCH—Reroute a signal to a different circuit
  11. RF—Electromagnetic signals with frequency > 70 kHz

Down

  1. SMOOTHINGCIRCUIT—A filter for removing spurious noise from a power supply
  2. EXTENSIBLE—“X”
  3. POINTSOURCE—Small energy source that has no effect on its directivity
  4. SHUNT—Component that bypasses another component
  5. GERMANIUM—Semiconductor material used in solid-state diodes and photocells
  6. DAMP—Suppress resonance
  7. DYNE—10 micronewtons
  8. CBAR—0.01 bar
  9. ERG—10–7 joules

Electrical Engineering Crossword (Issue 293)

The answers to Circuit Cellar’s December electronics engineering crossword puzzle are now available.293-crossword-(key)

Across

  1. AMPACITY—Max electrical current
  2. HUMREDUCTION—Use a bridge rectifier driven from an 8- to 12-V transformer winding, a capacitive filter, and a three-terminal IC voltage regulator to achieve this [two words]
  3. EMI—Radiated spurious EM energy
  4. BINARY—Offs and Ons
  5. PASCAL—1 newton/cm2
  6. QUARTZ—Timing crystal
  7. ETCHING—The production of a printed circuit through the removal of unwanted areas of copper foil from a circuit board
  8. CROSSTALK—Caused when one circuit’s signal creates an unwanted effect on another
  9. BUCK—Switched-mode power supply converter
  10. BETATRON—Designed to accelerate electron
  11. BIDIRECTIONAL—Radiating toward or receiving from the front and back only
  12. CRYOTRON—Operates via superconductivity

Down

  1. STOKESSHIFT—Can reduce photon energy [two words]
  2. INPUT—Signal in
  3. ATTO—0.000000000000000001
  4. NOISECANCELLATION—Eliminates out-of-phase information [two words]
  5. MAL—10 Decimals equals?
  6. RAMP—Linearly rising signal
  7. FORCE—Newton
  8. KEYED—OOK is on/off what?
  9. BUS—Common path for several signals

Electrical Engineering Crossword (Issue 292)

The answers to Circuit Cellar’s November electronics engineering crossword puzzle are now available.292-crossword-(key)

Across

  1. BITS—A nibble is 4 of these
  2. REPEATER—ELECTRONIC DEVICE THAT RECEIVES AND AMPLIFIES A WEAK SIGNAL BEFORE RETRANSMITTING IT
  3. MICRO—Metric Prefix for 0.000001
  4. PATCH—To re-route a signal to a different circuit
  5. TOKEN—Used for authentication
  6. RELAY—A switch that is actuated by another electrical signal
  7. JITTER—The deviation of some aspect of a digital signal’s pulses
  8. RHEOSTAT—A variable resistor
  9. LUX—Lx
  10. VOLTA—Italian physicist who invented the first batteries
  11. GERMANIUM—Ge
  12. CONDUIT—Wire piping
  13. PIGTAIL—Short wire connecting components
  14. RECTIFIER—A diode, used for converting AC into DC

Down

  1. SCHOTTKY—High-speed diode that has very little junction capacitance
  2. PEERTOPEER—P2P
  3. INRUSH—A sudden input current surge
  4. CRESTFACTOR—The ratio of the peak value to the RMS value (two words)
  5. MICROFARAD—1,000,000 pF
  6. ANALOG—Constant signal processing

 

 

Electrical Engineering Crossword (Issue 291)

The answers to Circuit Cellar’s October electronics engineering crossword puzzle are now available.291crossword (key)

Across

4.     PARAMETRON—Phase-locked oscillator

8.     UNBALANCED—Single-ended

9.     STRAY—Unwanted capacitance

10.   LEYDENJAR—Early capacitor [two words]

12.   ELECTROLYTE—Conducting fluid

14.   CROSSTALK—Caused when one circuit’s signal creates an unwanted effect on another

16.   ANECHOIC—Absorbs sound or electromagnetic wave reflections

17.   BIFILAR—Used in bipolar power-supply transformers to improve output voltage symmetry

18.   CRYSTALRECTIFIER—Semiconductor diode [two words]

19.   DOPPLEREFFECT—Frequency change that occurs when emitter and receiver move in unison [two words]

Down

1.     BLEEDER—A resistor that draws the critical amount of load current

2.     GAUSSMETER—Detects magnetic anomalies

3.     HETERODYNE—Two frequencies combine to produce new ones

5.     SURFACEMOUNT—Place components directly on PCBs [two words]

6.     HASH—Garbage or gibberish

7.     GALVANOMETER—Measures small voltages

11.   RECTIFIER—Passes current in only one direction

13.   CATWHISKER—Sharp, flexible wire that connects to a semiconductor crystal’s surface [two words]

15.   ANOTRON—Cold-cathode-glow discharge diode

 

Electrical Engineering Crossword (Issue 290)

The answers to Circuit Cellar’s September electronics engineering crossword puzzle are now available.CrosswordEmptyGrid (key)

Across 

2.     THREE—Trivalent valence

3.     PHYSICS—Kilby’s Noble Prize in 2000

5.     INVERTER—Converts DC to AC

8.     BATCH—BAT file

9.     MAXIM—Founded ARRL in 1914

10.   KEYBOARD—If you are AFK, what are you away from?

11.   UPENN—University that housed the ENIAC in a 30’ × 40’ room

12.   HERTZ—1 cycle per second

14.   NIBBLE—4 bits

17.   EXPLAINER—Asimov was the great what?

Down

1.     TRACK—PCB path

3.     PATCH—Quick fix

4.     SNIFFER—Used to monitor network traffic

6.     MAXWELL—A Gauss is one of these per square centimeter

7.     IBM—”Big Blue”

8.     BOOLE—“An Investigation of the Laws of Thought” (1854)

13.   TOGGLE—Move from setting A to B

15.   BLUE—Screen of death

16.   NINE—A nonet is a group of what?

17.   EW—Exawatt

Electrical Engineering Crossword (Issue 289)

The answers to Circuit Cellar’s August electronics engineering crossword puzzle are now available.289PuzzleGrid (key)

Across

1.     FAST—Ethernet at 100 Mbps

3.     FAB—IC factory

6.     XOR—Logic gate

7.     VERILOG—HDL created in the early 1980s by Goel and Moorby

9.     MIL—0.001 inches = 25.4 what?

10.   AMPHOUR—Current flow over time [two words]

13.   SANTOS—Greek national soccer team manager with a degree in electrical engineering

14.   NOLEAD—Quad, flat, … [two words]

16.   BUCK—Step-down

17.   FEMTO—0.000000000000001

18.   GND—Ground pin

19.   NULL—Zero

Down

2.     SLICE—Wafer or substrate

3.     FILO—Antonym for FIFO

4.     QUINARY—Base-5

5.     CODERDECODER—CODEC [two words]

7.     VERSORIUM—Gilbert’s static-detection device

8.     DISSIPATION—Release heat

11.   HAPTIC—Relates to touch

12.   JOULE—1 watt second

15.   DOPING—Process of purposely adding impurities

Electrical Engineering Crossword (Issue 288)

The answers to Circuit Cellar’s July electronics engineering crossword puzzle are now available.288Crossword (key)

Across

2.     QUIESCE—Inactive but still available

4.     GLUELOGIC—Used for circuitry interfacing [two words]

7.     AMAYA—Open-source web tool developed by members of the World Wide Web Consortium (W3C)

8.     ROUNDROBIN—A continuous sequence [two words]

9.     FATCLIENT—A tower PC, for example [two words]

11.   LOGICBOMB—Explosive code [two words]

15.   HEISENBUG—A software glitch that changes its conduct when analyzed

16.   STROBOSCOPE—Makes things appear to move slowly or not at all

17.   STATAMPERE—Approximately 0.333 nanoampere

18.   KORNSHELL—Unix command-line interpreter developed by and named after a Bell Labs employee [two words]

19.   VOXEL—Defines a point in 3-D

Down

1.     BEAMFORMING—Signal processing for sensor arrays

3.     SPIBUS—Works in double-duplex mode [two words]

4.     GREP—UNIX-based command-line utility

5.     SUPERHETERODYNE—Used to convert to intermediate frequencies

6.     ENDIAN—Creates data words

10.   PHOTOVOLTAICS—Uses solar power to create energy

12.   BITTORRENT—File sharing protocol

13.   BINARYPREFIX—E.g., gibi [two words]

14.   AUSTRUMI—Linux distribution based on Slackware

 

Electrical Engineering Crossword (Issue 287)

The answers to Circuit Cellar’s April electronics engineering crossword puzzle are now available.287 crossword (key)

Across

1. BEAMFORMING—Signal processing technique

7. HETERODYNERECEIVER—Converts a signal to an intermediate frequency [two words]

8. AMIGA—A high-resolution PC based on Motorola’s 6800 microprocessor family

9. NAGLING—Creates “Russian doll”-type packets to improve a TCP/IP network’s performance

10. SERVERBLADE—A thin circuit board designed for one specific application [two words]

15. FUZZING—Tests for coding and security errors

17. PHASECHANGE—Nonvolatile RAM [two words]

18. WALLEDGARDEN—Restricts access to Web content and services [two words]

19. SERIALBACKPACK—A PCB interface that goes between a parallel LCD and a microcontroller [two words]

20. SLACKWARE—Open-source, Linux-based OS

Down

2. ROOTMEANSQUARE—Determines an AC wave’s voltage [three words]

3. ROENTGEN—IBM’s active matrix LCD

4. KERNELPANIC—Happens when a fatal error is detected [two words]

5. BIPHASEENCODING—Requires a state transition at the end of every data bit [two words]

6. PERMITTIVITY—Ability to be polarized

11. VOODOO—Helps create realistic 3-D graphics

12. FLANGING—An audio process that combines signals to create a comb filter effect

13. BREADBOARDING—Used for circuit design experimentation

14. STATOHM—Five of these equal approximately 4.5 × 1012

16. TELEDACTYL—Utilizes human speech to code

 

Electrical Engineering Crossword (Issue 286)

The answers to Circuit Cellar’s April electronics engineering crossword puzzle are now available.

Crossword-CC286-May14

Across

2. SAMBA—This networking protocol enables you to write to an embedded file system from a Windows PC

7. ELECTROMAGNETICFIELD—Used for data transfer [two words]

8. CAPACITOR—These types of microphones were commonly called “condensers” until about 1970

9. HOMODYNE—A receiver with direct amplification

13. BLENDER—Contains several modeling features and an integrated game engine

15. PULSESHAPING—Used to improve wired or wireless communication link performance [two words]

17. BRILLOUINSCATTERING—Occurs when certain types of light change their frequency and route [two words]

18. CLOCKSIGNAL—Used to coordinate circuits’ actions [two words]

19. RASPBERRYPI—Designed to encourage scholastic computer science lessons [two words]

Down

1. NONRETURNTOZERO—Typically 1s are a positive voltage and 0s are a negative voltage [four words]

3. BITARRAY—Provides compact storage for computing and digital communications [two words]

4. DOUBLEDATARATE—Coordinates the rising and falling edges of an [18 Across] to transfer data [three words]

5. ANECHOIC—Absent of sound

6. FIRSTINFIRSTOUT—Oldest requests receive priority [four words]

10. INTERFERENCE—The “I” in SQUID

11. CROSSTALK—Occurs when accidental coupling causes unwanted signals

12. BINISTOR—An electronic oscillator component

14. NANCY—Receiver that intercepts or demodulates IR radiation

16. BEAGLEA good breed of analyzer for I2C and SPI designs

 

Electrical Engineering Crossword (Issue 285)

The answers to Circuit Cellar’s April electronics engineering crossword puzzle are now available.

285-crossword-keyAcross

2.    STOKESSHIFT—Can reduce photon energy [two words]
8.    HYSTERESISLOOP—Its area measures the energy dispersed during a magnetization cycle [two words]
11.    NANDGATE—A shoe in when playing “true or false?” [two words]
13.    YOCTOPROJECT—An open-source alliance designed to help Linux aficionados [two words]
15.    RANKINE—°R
17.    INTERNALNET—A network that resides in and around you
18.    SEQUENTIALCIRCUIT—Dependent on past input [two words]
19.    NANOHENRY—Its abbreviation is the same as the state bordered by Massachusetts, Maine, and Vermont
20.    BINARYCODEDDECIMAL—Makes good use of a 4- or 8-bit nibble [three words]

Down

1.    BIREFRINGENCE—Divides light into ordinary and extraordinary rays
3.    SQUIRREL—An object-oriented programming language
4.    SMARTMETER—Records and shares energy usage information [two words]
5.    MESHANALYSIS—A circuit evaluation method [two words]
6.    LYOTFILTER—Uses [1. Down] to produce a narrow frequency range of wavelengths [two words]
7.    LINEARREGULATOR—Keeps things steady [two words]
9.    BRAGGDIFFRACTION—Occurs when electromagnetic radiation disperses [two words]
10.    AUTODYNE—An amplifying vacuum tube-based circuit
12.    FEMTOWATT—10–15 W
14.    UNIJUCTION—Can be used to measure magnetic flux
16.    PEAKER—Increases gain at higher frequencies

Electrical Engineering Crossword (Issue 284)

The answers to Circuit Cellar’s March electronics engineering crossword puzzle are now available.

284-crossword-key

Across

1.    CROSSEDFIELDAMPLIFIER—This vacuum tube is capable of high output power [three words]
3.    HYPERVISOR—Produces and runs virtual machines
5.    DYNATRON—Uses negative resistance to keep a tuned circuit oscillating
8.    ULTRAVIOLETLIGHT—Gives some substances “a healthy glow” [two words]
13.    ZEROMOMENTPOINT—A moment of respite for robots [three words]
14.    THERMOSONIC—Connects to silicon ICs
17.    CATSWHISKER—An outdated electronic component mainly used in antique radios [two words]
18.    FLEMINGVALVE—Invented in the early 1900s, this was known as the first vacuum tube [two words]
19.    BACKBONE—Makes LANs connect

Down

2.    DEMODULATOR—Recovers information from a regulated waveform
4.    SQUEGGING—This type of circuit oscillates erratically
5.    DOWNMIXING—Audio manipulation process
6.    REYNOLDSNUMBER—Used for flow pattern predictions [two words]
7.    LATENCY—Used with bandwidth to ascertain network connection speed
9.    THICKFILM—This type of chip resistor is commonly used in electronic and electrical devices [two words]
10.    DYNAMIC—Its memory is volatile
11.    CRYOTRON—Operates via superconductivity
12.    NETMASK—Creates neighborhoods of IP addresses
15.    HOROLOGY—E.g., clepsydras, chronometers, and sundials
16.    SEEBECK—An effect that creates electricity