Experiments Included:

Analog Section:

  • Application of Ohm’s Law
  • Series DC Circuit
  • Parallel DC Circuit
  • Diode Characteristics
  • Characteristics and Applications of Zener Diode
  • Diode in a DC Circuit
  • Half Wave Rectifier Circuit
  • Full Wave Rectifier Circuits with Center Tapped
  • Bridge Rectifier Circuits
  • Voltage Doubler Circuit
  • Characteristics of Light Emitting Diodes
  • Characteristics of Bipolar Junction Transistor
  • Characteristics of Field-Effect Transistor (FET)
  • Characteristics of Unijunction Transistor (UJT)
  • Characteristics of Programmable Unijunction Transistors (PUT)
  • Characteristics of Silicon Controlled Rectifier (SCR)
  • Characteristics of DIAC
  • Characteristics of TRIAC
  • Non-Inverting Amplifier Circuit
  • Inverting Amplifier Circuit
  • Differential Amplifier Circuit
  • Integrator Circuit
  • Differentiator Circuit
  • Low-Pass Filter Circuit
  • High-Pass Liter Circuit
  • Band-Pass Filter Circuit

Digital Section:

  • AND Gate Operation, OR Gate Operation
  • NOT Gate Operation, NAND Gate Operation
  • NOR Gate Operation, XOR Gate Operation
  • Construction of XOR Gate from NAND Gate
  • Half Adder Operation
  • Full Adder Operation
  • Half Subtractor Operation
  • Full Subtractor Operation
  • 7-Segment Display Operation
  • Decoder Operation
  • BCD to 7-Segment Display
  • Multiplexer Operation
  • Using Multiplexer and Demultiplexer/Decoder
  • Multiplexing 7-Segment Displays
  • Comparator Operation
  • D Latch and Flip Flop Operation
  • Latching BCD Data for Displaying 7-Segment Display
  • Re-circulating Data
  • J-K Flip Flop Operation

IT-400A is a comprehensive and self-contained system suitable for anyone engaged in Digital and Analog circuit experiments. All necessary equipment for Digital and Analog circuit experiments such as power supply, function generator, Data Switches, LEDs, Logic Probe, 7-Segment Displays etc are installed on the main unit. The Bread board allows students to perform a wide variety of experiments relating to essential topics in the field of digital and analog circuit. It is a time and cost saving device for both students and researchers interested in developing and testing circuit prototypes.


  • Bread Board Based
  • Power Supplies Included
  • Basic Measuring Instruments Included
  • Flexibility to Perform Custom Experiments
  • Output Devices like LEDs, 7-Segment and Frequency Counter Included
  • Input Devices like Push Switches, Toggle Switches Included
  • Standard Function Generator Included
  • User can attach custom Devices through Universal Connector detachable Cards
  • Passive Components Included
  • Protection Circuits Included

Technical Features:

Fixed DC Power Supply:

  • +5V, -5V, +12V, -12V with short circuit protection

Variable DC Power Supply:

  • 0 ~ +15V and 0 ~ -15V adjustable with short circuit protection

FIX Supply AC:

  • 2V-0-2V, 12V-0-12V, 15V-0-15V with fused protection

Function Generator:

Output Waveform:

  • Sine, Square, Triangle and TTL

Output Frequency:

  • up to 100KHz in five steps
  • Variable frequency control
  • Variable Gain control
  • Variable Offset control
  • Output voltage adjustable to 5V p-p

Universal Counter:

  • Frequency range: 1Hz~50MHz
  • Input signal: TTL or CMOS level or any level.
  • Display: 4 digit 7-segment LED display.

 Logic Probe:

  • Logic probe for displaying logic level/pulse signal display for both TTL and CMOS level signals. MEM and PULSE section for state locking or continuous input refreshing.

3 ½-Digit Digital Voltmeter:

  • 200mV, 2V, 20V, 200V

Data Switch:

  • 16-bit Logic switches with straight and inverted output logic
  • Output compatible with TTL/CMOS logic

Push Switch:

  • Two independent Switches
  • Each switch output compatible with straight and inverted Logic

De-Bounce Switch:

  • Each switch output is TTL compatible with De-Bounce circuit

Logic Indicator/State Monitor:

  • 24 independent LEDs indicate high and low logic state
  • All outputs are short circuit/over voltage protected

Digital Display:

  • 3 independent 7-segment LED display with BCD to 7-segment decoder/driver Input with 8-4-2-1 code
  • All outputs are short circuit/over voltage protected


  • Carbon Track 1K and 100K

Interface Connectors:

  • 2X BNC Connectors interfaced to 2mm gold plated pins
  • 1X Banana Connector interfaced to 2mm gold plated pin

Audio Output

  • 0.5W Speaker with Audio Amplifier and Volume Control


  • TTL/CMOS compatible input
  • For visible indication of digital outputs

Optional Interface Cards:

  • Universal add-on interface cards

Solderless Breadboard:

  • 2 Terminal Strips, Tie-point 1680
  • 4 Distribution Strips, Tie-point 400

Accessories: 2mm-1mm patch cords, Power Cord, User Manual