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- Circuit Cellar magazine:
- Elektor Electronics magazine:
- Nuts And Volts magazine:
Dancing glass on a rope
Danger of drugs
Danger of the electromagnetic field and protection against its influence
Dangerous factors of fire and explosion
Dangerous gas detector
Dangers of electricity: real, imaginary and unexplored
Database administrator. Job description
Databases. Lecture notes
Datasheet of the electric motor
Day care provider. Job description
Day of the week
Day of the week in the palm of your hand
Daylight from the battery
Daylight-free starting of fluorescent lights
Daytime running light switch
DC 12 V converter to AC 220 V 50 Hz
DC motor control
DC motor speed stabilizer
DC sources - with their own hands
DC voltage indicator
DC voltmeter with automatic range selection
DC-DC converter forming two voltages
DC-DC converter on integral timer, 12/40 volts 1 ampere
DC-to-DC charger with increased voltage
Dean of the Faculty. Job description
Debug module for KR1816VE35
Debug module for microcontrollers of the MCS51 series
Debugger for microcontrollers of the family HC908
Debugging microcontrollers using a ROM emulator
Deceleration of reactions in gelatin solution
Decoder for a simple remote control system
Decolouration of shellac
Decorator for showcases. Job description
Decoupling consoles on relays for loads up to 600 volts
Decoupling of power circuits of analog and digital channels
Decoupling strategies for PCB
Decrease in the influence of electric welding machines on the network
Decrease in the resonant frequency of the heads
Decrease the temperature in the computer's system unit
Decrease the temperature in the system unit
Decreasing card fan
Deep Metal Detector
Deepwater habitable underwater vehicle
Defectoscope for magnetic and ultrasonic inspection. Standard instruction on labor protection
Defectoscope technician for magnetic and ultrasonic testing. Standard instruction on labor protection
Defectoscopist. Standard instruction on labor protection
Defects of concealed wiring
Define without gyro
Defining the sides of the horizon for buildings
Defining your own location
Definition of any day of the week in the 21st century
Definition of discounts and surcharges to tariffs
Definition of distances by the shadow of an object
Definition of distances by visible details of objects
Definition of distances from measured angles
Definition of distances in steps
Definition of distances with QTH-locator
Definition of distances with the help of thousandths
Definition of pinout transistors
Definition of rectangular coordinates on a map and drawing of objects on a map by coordinates
Definition of the doorphone configuration
Definition of the sides of the world according to the shadow
Deforestation (clearing routes). Standard instruction on labor protection
Degreasing sheepskins and pelts
Delay of light off in the cabin
Delayed scan in an oscilloscope
Delicious glass cups
Delta antenna at 80 meters + Inverted V at 160 meters
Delta from 10 to 40 meters
Delta of the Volga
Delta-Loop for the 10.1 MHz band
Demercurization measures. Standard instruction on labor protection
Demodulator of frequency-manipulated signals on active filters
Demonstration experiments in chemistry. Standard instruction on labor protection
Demonstration experiments on biology. Standard instruction on labor protection
Demonstration ultrasound unit
Demonstrator of clothes. Job description
Demonstrator of hairstyles. Job description
Demonstrator of plastic poses. Job description
Demountable inflatable sailing catamaran
Dendy - the generator of test television signals. A new version
Dendy: selection, operation, repair
Denominations change places
Denominations of nowhere
Dentist. Job description
Dentist. Standard instruction on labor protection
Dentistry. Lecture notes
Dependence of ADSL operation on various parameters
Dependent inclusion of electrical appliances
Dependent load switching
Dependent switch for household appliances
Dependent switching on of electric and radio devices
Depth of detection of objects by a metal detector
Deputy Chief Accountant. Job description
Deputy chief doctor of the hospital for clinical and expert work. Job description
Deputy Chief Physician of the Hospital for Surgery. Job description
Deputy Dean of the Faculty. Job description
Deputy Director for Administrative and Economic Affairs. Standard instruction on labor protection
Deputy Director for Administrative and Economic Work. Job description
Deputy Director for Capital Construction. Job description
Deputy Director for Commercial Affairs. Job description
Deputy Director for Economic Affairs. Job description
Deputy Director for Human Resource Management. Job description
Deputy Director for Production. Job description
Deputy Director for Quality. Job description
Deputy Director for Retail Trade. Job description
Deputy Director for Sports. Job description
Deputy director for teaching and educational work. Job description
Deputy Director for Training and Production. Standard instruction on labor protection
Deputy Director of the School for Academic Affairs. Job description
Deputy Director of the store. Job description
Deputy Editor-in-Chief. Job description
Deputy General Director of the Trade Enterprise. Job description
Deputy General Director. Job description
Deputy Head of City Administration. Job description
Deputy Head of Customer Service. Job description
Deputy Head of Operations. Job description
Deputy Head of the Control and Revision Department. Job description
Deputy Head of the Department of Foreign Economic Affairs. Job description
Deputy head of the logistics department for production issues. Job description
Deputy Technical Director. Job description
Descent of the victim from the support of the overhead line
Descrambler of the coded TV channel
Descriptions of hidden video surveillance devices
Descriptions of VirtualDub filters
Design features and design. Adjustment and measurement of parameters
Design features of modern tube ultrasonic
Design features of VHF equipment
Design issues for amplifiers with common OOS
Design low-power SMI on the LNK501 chip using the VDS program
Design of a welding source for semi-automatic welding with a thyristor regulator
Design of an AC power source
Design of broadband transformers
Design of electronic starting and regulating devices for fluorescent lamps
Design of instant manufacture of a power source
Design of the universal metal detector case
Design of tube amplifiers
Designation of grounding systems for electrical installations with voltages up to 1 kV
Designations of imported microcircuits
Designations of imported semiconductor devices
Designations wire diameter and sheet thickness in foreign editions
Designer of clothes. Job description
Designer of computer graphics department of video production. Job description
Designer of finished products. Standard instruction on labor protection
Designer. Job description
Designer-coder. Job description
Designer-visualizer. Job description
Designing a loudspeaker with orthogonal radiation streams
Designing an automated access control system
Designs by M.Erofeev
Desired and valid
Desktop Hydroelectric Power Station
Desktop microphone with preamplifier for transceiver
Desktop milling machine
Desktop mock-up for 10 Mbit laser communications
Desmurgy, science and the imposition of bandages
Desulphurizing car charger
Details about all formats of video cameras
Details about the subwoofer in the home theater
Detection of a faulty chip series KR580
Detection of carbon dioxide in the exhaled air
Detective agency of the black jack
Detector and detection
Detector by an unusual scheme
Detector for finding radio receivers
Detector receiver with UZCH
Detector VHF receivers
Detectors for PLL receivers
Detergents from plants
Determination of distance by mental sequential deposition of a known segment
Determination of distances on the plate of Lyonnais
Determination of line impedance
Determination of parameters and calculation of a power source transformer for semi-automatic welding
Determination of pulse and respiration, their evaluation
Determination of saturation current of inductors with magnetic circuits
Determination of the amount of insurance tariffs
Determination of the height of the object according to its height
Determination of the number of windings of power transformer windings
Determination of the number of windings of the transformer windings
Determination of the power of the wind generator
Determination of the sides of the world according to the Sun and the clock
Determination of wire cross-section
Determine the width of the river in steps
Development Director. Job description
Development of a wind power plant construction project
Development of a wind power project
Development of ALPHARD TW-318 speakers
Development of car audio Toshiba TX-20
Development of FM VHF FM receiver MAMVO
Development of receivers
Development of surround sound systems - from monophonic to 3D
Development of technological regulations
Development of telephone set-top boxes on PIC-controllers
Development of the acoustic system 35AC-1
Development of the list of works with increased danger
Development of the power supply AV3302
Development of the SEGA joystick
Development of wind-breaker felling areas. Standard instruction on labor protection
Developmental psychology and age psychology. Lecture notes
Device auto-reset processor in AON
Device for a smooth start-up of power
Device for automatic disconnection of household appliances from mains
Device for automatic drying of motor windings
Device for automatic recharging of 12 volt batteries in the emergency power system
Device for automatic recharging of batteries in the emergency power system
Device for braking three-phase asynchronous electric motor
Device for charge and battery formation
Device for charging car batteries
Device for checking and controlling servo drives
Device for checking electronic ignition systems of domestic cars
Device for checking high-voltage transistors
Device for checking LCD modules on the basis of HD44780 controller
Device for connecting 3-phase motors to a single-phase network
Device for controlling moving parts
Device for decelerating the electromagnetic devices of alternating current when they turn off
Device for delayed activation and protection of loudspeakers
Device for delaying the activation of the refrigerator
Device for delaying the lights off in the car
Device for detecting moving metal objects
Device for detecting water in liquids with high resistivity
Device for determining interturn closures
Device for determining the permittivity of materials
Device for determining the terminals, structure and current transfer coefficient of transistors
Device for dynamic braking of a capacitor motor
Device for fast charging of batteries
Device for finding acupuncture points
Device for finding biologically active points
Device for finding the fault location of the line
Device for finding the place of cable breakage
Device for listening to car engine noise
Device for listening to magnetic phonograms
Device for local magnetotherapy
Device for maintaining the microclimate in the winter garden - home weather station
Device for monitoring ignition systems
Device for monitoring small voltage deviations
Device for monitoring the rotation of the cooler (fan, electric motor)
Device for monitoring the water level in the radiator
Device for multi-command remote control on a microcontroller for carrying out pyrotechnic shows
Device for one-button load control
Device for orientation of the blind
Device for orienting antennas DMV
Device for protecting electric power consumers
Device for protecting equipment from abnormal network voltages
Device for protecting filaments of incandescent lamps
Device for protecting household appliances from mains voltage fluctuations
Device for protecting the motor from overheating
Device for protecting the power supply from overloads
Device for protecting three-phase consumers
Device for protection of acoustic systems
Device for protection of high-current equipment
Device for protection of loudspeakers on microcircuits
Device for protection of three-phase asynchronous motor when the fuse fails
Device for pumping groundwater
Device for recording and playback of speech ChipCorder on the chip ISD1210S
Device for removing static charges from the surface of sheet polymeric materials
Device for selecting thyristors
Device for setting the ignition timing
Device for setting up KB antennas
Device for setting up NTV equipment
Device for single-phase asynchronous motor control
Device for starting a single-phase electric motor with a starting winding
Device for testing capacitors
Device for testing electrolytic capacitors
Device for testing high-voltage transistors
Device for testing horizontal scan
Device for testing telephone sets
Device for testing transistors
Device for the discharge of Ni-Cd battery
Device for the treatment of infrared and laser radiation
Device for tracking the Sun
Device for treatment of magnetic field
Device for tuning antennas
Device for tuning radio equipment
Device Laboratory assistant for sessions of auto-training
Device of alternate inclusion of consumers
Device of the well
Device of wind power plant
Device OMP-1 for detecting metal objects
Device Perpetual alarm clock
Device to protect the three-phase consumer from changing the phase sequence
Device with intermittent power interruption with a long exposure
Devices and fixtures of lighting electrical installations
Devices for charging batteries
Devices for grinding products
Devices on logical elements
Devices on the MAX869L chip
Devices Pulse and Inhalation-exhalation
Devices with USB
Diagnostic codes of BOSCH M1.5.4 and January 5 controllers under the EURO II
Diagnostic POST Card for ISA bus
Diagnostic tool - trip computer
Diagnostic tool for car engine with BOSCH controller
Diagnostics and maintenance of tractors and agricultural machines. Standard instruction on labor protection
Diagnostics of cell phone batteries
Diagram and detailed description of the self-made power supply
Diagram for powering LEDs with a power of 5 watts of LUXEON V type
Diagram of power supply for fluorescent lamps
Diagram of the electrical equipment of the car Moskvich M-412
Diagram of the electrical equipment of the car VAZ-2106, 21061 and 21063 (1976-1987)
Diagram of the electrical equipment of the car VAZ-2106, 21061, 21063 and 21065 (1988-2001)
Diagram of the electrical equipment of the car VAZ-2108, VAZ-2109
Diagram, pinout (wiring) of the cable Sagem 3xx, 9xx + pinout
Diagram, pinout (wiring) of the cable Sagem 6xx, 7xx, 8xx
Dial welding machine for any power
Dictionary of Video Effects
Did children have toys in the ancient ages?
Did libraries exist in ancient times?
Did people ever speak Latin?
Did the dragons really exist?
Did the Vikings visit America?
Did the weather affect the course of history?
Didactics. Lecture notes
Diesel engine noise generator
Dietetic nurse. Job description
Different stain removal compositions
Different types of metal detectors and their operating principle
Differential and Integral Numbering
Digger. Standard instruction on labor protection
Digital advertising dispenser
Digital APC for the transceiver
Digital automatic angle control O3
Digital automatic-angle regulator OZ
Digital battery voltage meter
Digital camera - slide scanner
Digital capacitance meter
Digital code generator with memory
Digital dosimeter Gamma_1
Digital FM stereo receiver 60-110 MHz with microprocessor control
Digital frequency converter
Digital frequency multiplier
Digital frequency synthesizers 1508PL11, 1508PL11A, 1508PL12
Digital integrated circuit
Digital kitchen timer
Digital LFD in a heterodyne
Digital Luminescent Oscilloscopes
Digital meter for capacitance and internal resistance of batteries
Digital meter of transistors
Digital microcircuits in sports equipment
Digital microcircuits. Types of logic, housing
Digital microphone for training feathery onomatopoeia
Digital mini voltmeter with LCD
Digital multimeter M830B. Electrical circuit, description, characteristics
Digital multimeter M832. Electrical circuit, description, characteristics
Digital multimeter M838. Electrical circuit, description, characteristics
Digital multimeter M890G. Electrical circuit, description, characteristics
Digital noise generator
Digital noise generator for acoustic measurements
Digital output voltage control for L200
Digital phase shifter
Digital Power Controller
Digital power regulator soldering iron
Digital radio frequency control system with frequency coding
Digital reception frequency meter
Digital root stability
Digital satellite television
Digital scale - frequency meter
Digital scale + frequency counter DS018
Digital scale for FM receivers of superheterodyne type on microcircuits
Digital scale generator
Digital scale with correction of indications
Digital single-chip recorder
Digital speedometer, clock and thermometer for car
Digital synth sound effects siren
Digital tape recorder
Digital thermometer on the LM75AD sensor
Digital thermostat on microcontroller PIC16F628
Digital time switch
Digital timer for the pump
Digital tuning dial of VHF radio
Digital video archive for the house
Digital video camera as web camera
Digital voice recorder on one chip
Digital voltage indicator
Digital voltmeter on the C520 chip
Digital voltmeter with automatic selection
Digital volume control
Digital wiper control unit for the car
Dimmer for billboard
Dimmer for table lamp
Dimmer with remote control
Dimmer with remote control on infrared rays
Diode assembly KD638AC
Diode bridge for electric lamp
Diode in the lamp socket
Diode radio receiver at 65-130 MHz
Dioding separator for the phone
Diplexer 144/430 MHz
Direct conversion of solar energy into electricity
Direct conversion receiver
Direct conversion receiver at 144 MHz
Direct current amplifier
Direct current motor
Direct current motors
Direct gain radio
Direct gain receiver on KB
Direct Receiver KV Receiver
Direct starting of three-phase electric motor
Directing the mat to the glass
Direction finder with loop antenna
Directional antenna (mini) for the range 144-146 MHz
Directional antenna with vertical polarization
Directional low-frequency reception antennas
Directly opposite orders
Director (leader). Standard instruction on labor protection
Director for Railway Transport. Job description
Director General of the TV and Radio Company (TV companies, radio companies). Job description
Director of an advertising agency. Job description
Director of editing television and radio programs. Job description
Director of installation. Job description
Director of Logistics. Job description
Director of Marketing. Job description
Director of Production Department of the Television Broadcasting Department. Job description
Director of the agency. Job description
Director of the branch. Job description
Director of the educational institution. Job description
Director of the enterprise. Job description
Director of the hotel. Job description
Director of the housing enterprise. Job description
Director of the printing house. Job description
Director of the publishing house. Job description
Director of the restaurant. Job description
Director of the sports club. Job description
Dirt through the hand
Disadvantages of fluorescent lamps
Disappearance in the bottle
Disappearance of a coin from under a scarf
Disappearance on the stairs
Disappearing cage with a bird
Disappearing magic wand
Discharge indicator for 3-volt battery
Discharge indicator of computer mouse batteries
Discharge light from battery
Discipline of labor and methods of its maintenance
Disco cone antenna with a bandwidth of 80 to 500 MHz
Disco-cone antenna for 7 MHz
Discoloration and deodorization of kerosene
Discoloration of activated carbon by ink and other colorants
Discoloration of iodine solution using copper
Discoloration of resins
Discoloration of varnishes and drying oil
Disconnect the hoops
Discrete phase power controller
Discrete power controller
Disinfection of equipment, premises, transport
Disinfector. Job description
Disinfector. Standard instruction on labor protection
Diskette with IDE interface
Dismantle the supports. Standard instruction on labor protection
Dismantling of buildings and structures. Standard instruction on labor protection
Dismantling of multi-output parts
Dismantling of the ferrite core
Dismissal for violation in the field of labor protection
Dispatcher. Job description
Dispatcher. Standard instruction on labor protection
Dispenser for epoxy resin
Dispenser for granular fertilizers
Display of eight signals on the oscilloscope screen
Display unit BSK-10
Disputes about violations of the rules of labor protection
Distance meter for determining reaction time for light stimuli
Distance to the horizon
Distortion effect on field effect transistors
Distortion for electric guitar
Distribution of duties between officials involved in the elimination of emergencies
Distribution of electricity
Distribution of poisonous industrial substances and signs of poisoning by them
Distribution valve instead of spool
Disturbances of cerebral circulation
Diver insurance. Standard instruction on labor protection
Diver. Job description
DMV amplifier from SKD-1
DMV log-periodic antenna
Do all 13 countries count the number of misfortunes in all countries?
Do all cats purr?
Do all fish spawn?
Do all people lie?
Do animal colors differ?
Do animals have a sense of taste?
Do animals understand each other?
Do ants always live in colonies?
Do ants smell?
Do any birds fall into hibernation?
Do birds have ears?
Do butterflies migrate?
Do cacti have leaves?
Do crocodiles attack a person?
Do dogs distinguish colors?
Do dogs have dreams?
Do eel on the ground crawl?
Do elephants remember everything?
Do grasshoppers have a hearing?
Do I need to drink 1.5-2 liters of water a day?
Do I need to install?
Do I need to retrain the left-hander?
Do I need to take vitamins?
Do insects have a heart?
Do insects have blood?
Do leeches suck bad blood?
Do mammals lay eggs?
Do mosquitoes spread diseases?
Do not break through the fabric
Do not rush to throw out an energy-saving lamp
Do not stop rotating
Do not touch the cards with your hands
Do not untie the ropes
Do people have the same blood?
Do people have the same teeth as animals?
Do planets affect weather and climate?
Do plants respond to the upcoming weather changes?
Do polar bears fall into hibernation?
Do porcupines shoot with their needles?
Do raccoons wash their food?
Do sleepwalkers sleep in the night at the full moon?
Do snails lay eggs?
Do snakes hear?
Do snakes lay eggs?
Do the eyes of animals shine in the dark?
Do the fish sleep?
Do the planets influence our climate?
Dock with slug
Docking Monitor Electronics 6105 with IBM PC
Doctor for hygiene education. Job description
Doctor for hygiene of children and adolescents. Job description
Doctor of the day hospital. Job description
Doctor-child surgeon. Job description
Doctor-dentist-surgeon. Job description
Doctor-intern. Job description
Documentologist. Job description
Does an ostrich have a voice?
Does an ostrich hide its head in the sand?
Does carrots help to see in the dark?
Does hedgehog have immunity to snake venom?
Does it get warmer everywhere due to global warming?
Does techno have anything in common with rock music?
Does the area of the ice caps shrink at the poles?
Does the attenuator improve the dynamic range?
Does the bat have teeth?
Does the bee die by biting?
Does the climate change as a result of human activity?
Does the coloring of vegetables affect health?
Does the cow have four stomachs?
Does the dolphin refer to mammals?
Does the fish have a heart?
Does the giraffe have a voice?
Does the iron float?
Does the magnifying glass increase?
Does the moon have gravity?
Does the number of cyclones and anticyclones change?
Does the rattlesnake rumble before attacking?
Does the shark of people?
Does the sheep grow wool every year?
Does the skin change?
Does the skin have water?
Does the snake have bones?
Does the Sun pass through 12 zodiacal constellations?
Does the sun shine all the time the same?
Does the tree act as an air filter?
Does the turtle have a voice?
Does the universe end?
Does the weather affect your health?
Do-it-yourself mass from casein
Dolby noise suppressor
Domestic electronic ballasts
Domestic microchips and their foreign analogs
Domestic Reed Relays
Door Bell Patriot
Door bell time limiter
Door control device
Doorbell from a music card
Doorbell on chip ISD25xxx
Doorman. Job description
Doorman. Standard instruction on labor protection
Doorphone intercom (ENGLISH)
Doppler radar sensor for moving objects DMS-4
Dorm for mobile phones
Dormitory attendant at the educational institution. Job description
Dosimetric control when receiving scrap metal. Standard instruction on labor protection
Dosimetrist. Job description
Double balanced mixer SA612A
Double Conversation Node
Double reef knot
Double rise (two ways)
Double-object digital thermometer
Doubles swing bottles
Double-walled paper bag
Doubling voltage converter
Dove from the casket
Draftsman. Job description
Draftsman-designer. Job description
Dragonfly on the tip of a pencil
Drain-loading of viscous oil products. Standard instruction on labor protection
Drawer under the bathroom
Drawers in the bathroom
Drawing with iodine
Dream of the sky
Dream on the edge of the sword
Dresser. Job description
Drill for large diameter
Drill instead of lathe
Drill to any size
Drill with radiator
Driller. Job description
Drilling holes with electric current
Drilling machine from drill
Drilling of glass
Drilling of iron
Drilling without dust
Drills a razor
Drive mechanism switch option
Driver for low-voltage motor control
Driver in the transport of dangerous goods. Standard instruction on labor protection
Driver-forwarder. Job description
Driving - automatic
DRM signal converter for DEGEN 1103
Drop on the trunk
Drug addiction and substance abuse: problems of control, prevention
Drug addiction as a social phenomenon, its origins and distribution factors
Drugs and the danger of their use for health
Drum unit assembly
Drum unit power supply
Dry casein paints
Dry cleaning - removal of spots by adsorption
Dry cleaning - removal of stains by extraction
Dry cleaning by oxidation
Dry from water
Dryer. Standard instruction on labor protection
Drying of electrical machines
Drying oil from sunflower oil
Drying oils on resinous desiccants (reshotata)
DTMF standard number identifier
DTMF transmitter decoder control scheme
Dual balanced modulator
Dual band KB antenna
Dual channel LED flashlight controller
Dual head speaker system
Dual high-speed high-voltage optocoupler 80 ns / 3000 V 5P18
Dual high-speed high-voltage optocoupler with TTL output
Dual temperature control system
Dual-band antenna amplifier
Dual-band dipole at 3.5 and 7 MHz
Dual-band receive antenna
Dual-band VHF antenna
Dual-band VHF FM radio receiver on the K174XA34A chip
Dual-channel charger-discharge device
Dual-channel stabilizer on the TDA2004 chip
Dual-mode charge-discharge device
Duck quack simulator
Due to what chance was Gregor Mendel deservedly recognized as the founder of the doctrine of heredity?
Dummy of the standard odometer (electronic speedometer) of the car
Dumping Factor Myths and Reality
Dumping factor, myths and reality
Duo tray and bowls
Duplication with a magnetic antenna
Durable inks for documents
Duration of cooking food at the stake and the need for water
Dust - Kashcheeva computer needle
Dustiness and gas contamination of industrial premises
Dutch lacquer Elemi for oil paintings
Duty electrician of substation 10 / 0.4 kV. Standard instruction on labor protection
Duty room of slot machines, amusement rides and shooting galleries. Job description
DVD format glossary
Dyeing fabrics and yarns with substantive dyes
Dyeing of sheepskins and skins with acid dyes
Dyeing of sheepskins in black
Dyeing of wicker straw
Dyeing of wool
Dynamic bias in the tape recorder
Dynamic filter - squelch
Dynamic head resonance frequency meter
Dynamic heads for automotive speakers
Dynamic memory chip DRAM - as a video camera
Dynamic phase shifter - starter for asynchronous motor
Dynamics - a second life