OP-AMP Trainers EE-2900

OP-AMP Trainers EE-2900

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Features :

  • 9 Experiments Modules covered over 50 experiments detailed in the comprehensive experiment manual covering OP-Amp. characteristics and various application circuits
  • Main Frame Station contains ±DC power supply, signal generator and Frequency Counter etc. needed for experiments
  • Covers wide ranging experiments from OP Amp characteristics to precision instrumentation amplifiers.
  • Modules and the manuals are designed to ensure easy and time effective learning.
  • Each module contains the experiment circuit which is clearly illustrated by a circuit diagram on its top panel.
  • Switch faults are also incorporated into the modules for simulating fault situations.

The EE-2900 is a comprehensive and self-contained system suitable for anyone engaged in electronic circuit experiments. All necessary equipment for electronic circuit experiments such as power supply, function generators, clock generator, frequency counter are installed on the main unit. The 9 modules cover a wide variety of essential topics in the field of electronics circuit. It is a time and cost saving device for both students and researchers interested in developing and testing circuit prototypes especially in operational amplification circuitry.

Main Frame Station

The DC power supply provides fixed ±5V and ±12V at 1A, a variable ±0V ~ ±25V at 1A, and a AC power supply provides a 19V–15V–9V–0V–9V–15V-19V AC output at up to 500mA.

The function generator offers sine, square, and triangle waveforms at frequencies from 1Hz ~ 1MHz in 6 selection ranges. A 50MHz Auto ranging Frequency Counter offer to measured precise frequency up to 50MHz continuously.

Complete with 4 ½ Digits LED display Digital DC Volt Meter for DC voltage measurement from 0V up to 199.9VDC.

The main unit is also supplied with a removable 1680 tie point universal breadboard for general experimentation and prototyping, as well as the Logic Probe and Speaker built-in for better equipped facilities.

The full list of experiments performed using the above modules and detailed in the experiment manual are:

  1. Experiments Module 01 : Transistor Amplification Circuits Experiments Module
    1. Common emitter transistor amplification circuit
    2. Common base transistor amplification circuit
    3. Common collector transistor amplification circuit
    4. Switching type transistor circuit
    5. Darlington's circuit
  1. Experiments Module 02 : FET Amplification Circuits Experiments Module
    1. JFET common source amplification circuit: self-bias
    2. JFET common source amplification circuit: divide-bias
    3. JFET drain source amplification circuit: self-bias
    4. JFET drain source amplification circuit: divide-bias
    5. MOSFET amplification circuit: biased
  1. Experiments Module 03 : Multi-Stage Amplification Circuits Experiments Module
    1. RC coupled amplification circuit
    2. Direct coupled amplification circuit
    3. Transformer coupled amplification circuit
    4. Push-pull amplification circuit
    5. OTL amplification circuit
    6. OCL amplification circuit
    7. IC amplification circuit
  1. Experiments Module 04 : Transistor Negative Feedback Circuits Experiments Module
    1. Serial Voltage negative feedback circuit
    2. Parallel Voltage negative feedback circuit
    3. Serial current negative feedback circuit
    4. Parallel current negative feedback circuit
  1. Experiments Module 05 : Transistor Positive Feedback Circuits Experiments Module
    1. Low frequency sine wave oscillating circuit
      a. RC phase-shifting oscillating circuit
      b. Wien bridge oscillator circuit
    2. High frequency sine wave oscillating circuit
      a. Hartley oscillator circuit
      b. Colpitts oscillator circuit
    3. Crystal oscillating circuit
    4. Astable oscillating circuit
    5. Monostable oscillating circuit
    6. Bistable oscillating circuit
    7. Intermittent oscillating circuit
    8. Schmitt's trigger circuit
    9. Sawtooth wave oscillating circuit
  1. Experiments Module 06 : Op-Amp Amplification Characteristics Experiments Module (1)
    1. Transistor differential amplification circuit
    2. Characteristics of op-amps
      a. Input impedance measurement
      b. Output impedance measurement
      c. Bandwidth measurement
      d. Slew rate measurement
      e. Offset Voltage measurement (1)
      f. Offset Voltage measurement (2)
  1. Experiments Module 07 : Op-Amp Amplification Characteristics Experiments Module (2)
    1. Inverse amplification
    2. Non-inverse amplification
    3. Voltage-follower circuit
    4. Difference amplification (subtractor)
    5. Sum amplification (adder)
    6. Clipping circuit
    7. Constant Voltage circuit
    8. Constant current circuit
    9. Differential circuit
    10. Integrator circuit
  1. Experiments Module 08 : Op-Amp Application Circuits Experiments (1) Experiments Module
    1. Logarithm amplification circuit
    2. Exponential amplification circuit
    3. Peak value detection circuit
    4. Precision clipping circuit
    5. Voltage regulator circuit
    6. Sampling/hold circuit
    7. Instrument amplification circuit
    8. High pass amplification circuit
    9. Low pass amplification circuit
    10. Band pass amplification circuit
    11. RIAA amplifier circuit
    12. Tone controller circuit
    13. Single power inverse amplification circuit
  1. Experiments Module 09 : Op-Amp Oscillating Circuit - Positive Feedback Experiments Module
    1. Comparator
    2. Schmitt trigger
    3. Window type comparator
    4. Monostable multivibrator
    5. Astable multivibrator
    6. Sine wave oscillation circuit
      a. RC oscillator
      b. Wien oscillator


1. DC Power Supplies Module

  • Fixed Output: +5V/1A, -5V/0.5A, +12V/0.5A, -12V/0.5A
  • Variable Output: +0V ~ +25V/1A, -0V to -25V/0.5A
  • All power supplies are short circuit protected.

2. AC Power Supplies Module

  • 19V–15V–9V–0V–9V–15V-19V

3. Function Generator (2 Channels) & Clock Generator (2 Channels)

  • Sine, Triangle and Square waveform output
  • Frequency range : 1Hz to 1MHz in 6 decades
  • With fine adjust, Amplitude and DC offset control
  • Clock output 1Hz to 1MHz in 6 decades
  • Six frequency ranges:
  • 1Hz to 10Hz
  • 10Hz to 100Hz
  • 100Hz to 1KHz
  • 1KHz to 10KHz
  • 10KHz to 100KHz
  • 100KHz to 1MHz
  • Sine wave output: 0 to 12V peak to peak variable
  • Triangle wave output: 0 to 8V peak to peak variable
  • Square wave output: 0 to 12V peak to peak variable

4. Solderless Breadboard Module

  • Interconnected with 2712 tie points nickel plated contact, fits all components with DIP sizes and solid wire AWG#22-30 (0.30.8mm).

5. TTL/CMOS Selection Switch

  • Select TTL (+5V) or CMOS (12V) Mode for data switches

6. 2-Single Shot Pulse Module

  • 2 units push-buttons debouncer switches
  • 80µS Positive & Negative Pulse

7. Two digits of 7-segment LED Display Module

  • Output numerical displays


  • Segment Identification


8. 16-bit LED Indicators with buffer Module

  • Sixteen LED's separate input terminals.
  • The LED lighted up when input at "HI level", and turned off when no input or at "LO level"

9. 16-bit HI/LO Data Output Switches Module

  • Sixteen slide switches’ separate input terminals.
  • When slide switch set at "down" position, the output is LO level; it will be HI level while setting at "up" position.

10. 3-State Logic Probe Module

  • HI, Float & LO Level LED Logic Indicator

11. Speaker Module

  • 8 Ohm, 0.25W With Buffer

12. Digital DC Volt Meter

  • 4 ½ Digits LED display
  • Four voltage ranges :
  • 0V to 199.9VDC
  • 0V to 19.99VDC
  • 0V to 1.999VDC
  • 0V to 199.9mVDC
  • Input Impedance: 10Mohm for any range

13. Adaptors Interface Module

  • 2mm & 4mm Adaptor Interface Socket to turn pins socket

The ULT-3000 is shipped with a comprehensive Experiments & Instruction manaul in CD Format a power cord.

Power Supply : 240VAC, 50Hz (Fused Protected)

Dimensions : (W x D x H) 310 x 260 x 90mm

Weight : 3.5 kgs


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