Experimental Training Equipments-> Transistor Amplifier Circuits

Objectives of this experiment:
To demonstrate the operation and important characteristics of
1. The common-emitter amplifier.
2. The common -base amplifier.
3. The common collector amplifier configuration and their voltage gains before they are saturated. The common collector has a gain of less than one. The common -base amplifier has a gain of more than 150.

Built in regulated power supply: + 15V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

To construct basic amplifier, which uses base bias, voltage divider bias, emitter feed back and collector feed back and observe the relative thermal stability of each. You will apply heat to each circuit arrangement & observe the output voltage variations to determine which circuit provides the best thermal stability.

Built in regulated power supply +15V/300mA.
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:
To construct a complementary transistor power amplifier.

To measure two different types of distortion (cross-over distortion & distortion due to nonlinearly) by observing it on an oscilloscope, or hearing from a loud speaker. On a CRO, you can observe the different output waveforms produced, while the circuit bias is changed and while the input signal level is changed. You can also hear two different types of distortion from a loudspeaker.

Built in regulated power supply: +15V/300 mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:

To Construct Differential Amplifier using op-amp and verify that the output of the amplifier is proportional to the difference between the two Input signals.

Built in regulated power supply: + 15V/150mA, -15V/150mA.
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:
1. To construct the common source amplifier and determine the gain of the amplifier (VDS/VGS).
2. To construct the common drain amplifier (voltage follower) & to determine the unity gain.

Built in regulated power supply: +15V/150mA.
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:
1. To demonstrate the operation of Tuned RF Amplifier.
2. To calculate the resonant frequency (at which there is minimum amplitude at the output. Horizontal oscillations (to deflection yoke) results to a given Input signal by parallel combination of R & C (or) L & C at the collector.
3. The resonant frequency is calculated by theoretical formula and verified by this experiment.
4. To plot the curve voltage gain versus frequency.

Built in regulated power supply: + 15V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:

To construct a transformer coupled amplifier. Two amplifiers are cascaded through a transformer to match the output impedance of the first stage to the input impedance of the next stage and output amplification is verified.

Built in regulated power supply: +15V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:

In this experiment you will study the i. Voltage feedback amplifier. ii. current feedback amplifier. In case of voltage feedback the signal feedback is proportional to the output voltage, whatever may be the load impedance.
For voltage amplifier Voltage gain = VOUT / VIN = Rf / Ri

For current amplifier, voltage gain =V0 / Vi = RL / Rf

Built in regulated power supply: +15V/500mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:
In this experiment output capacitor of first transistor couples the input signal to the base of Q2.
1. To calculate input and output impedance. To calculate the individual gain of each amplifier gain V0/Vi.
2. And to calculate the overall gain of the amplifier circuit and frequency response.

Built in regulated power supply: + 15V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:
1. To construct AF power amplifier using TBA 810 IC.
2. The power amplifier is designated to deliver upto 7 watts into 8 ohms speaker.
3. It has got preamplifier using op-amp. We can give either AF signal from oscillator or voice signal and measure the input power & output power and calculate the amplification.

Built in regulated power supply: + 15V/300mA, -15V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:-

Using LM 380 you will construct positive feedback amplifier, negative feedback amplifier and vary the voltage gain & calculate the power gain.

Built in regulated power supply: + 15V/300mA.
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:

To analyse the H parameters of transistors as input impedance = V1 / l1, at output shorted. Reverse voltage gain V1/V2 at input open. Current gain I2/I1 at output shorted. Output admittance l2/V2 at input open for common emitter & common collector & common base.

Built in regulated power supply: + 15V/250mA, -15V/150mA.
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:
1. To study the characteristics of a thermistor as a temperature dependent device.
2. To study the static characteristics and plot the curve.
3. To study the dynamic characteristics of the device.
4. To note the temperature co-efficient of the device.

Built in regulated power supply: +15V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms

Objectives of this experiment:

To construct complementary symmetry audio amplifier and to measure the DC bias current and observe different waveforms like cross over distortion and calculate the output power and calculate efficiency and plot the graph.

Built in regulated power supply: + 9V/500mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms