Audio Amplifier using IC LM-380 Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12335
Indian Lab Suppliers supplies the Audio Amplifier using IC LM-380 (Product ID: 12335) as part of its electronics engineering lab equipment range. It is a board for measuring the gain, frequency response and impedances of an audio power amplifier built on the LM380 IC.
Quick Answer
Students measure voltage gain, plot the frequency response, and find the input impedance, output impedance, current gain and power gain of the LM380 amplifier. A 15 V DC, 50 mA IC-regulated supply is built in, and a three-dial decade resistance box (1 Ω, 1 kΩ and 10 kΩ per step, 30 steps, 110,010 Ω total) serves as a variable load or series resistance for the impedance tests. A function generator and a 20 MHz oscilloscope are needed separately.
Key Specifications
| Parameter | Detail |
|---|---|
| Amplifier IC | LM380 audio power amplifier |
| Internal supply | 15 V DC at 50 mA, IC regulated |
| Decade resistance | 3 dials, 30 steps: 1 Ω, 1 kΩ, 10 kΩ per step; 110,010 Ω total |
| Experiments | Voltage gain, frequency response, input and output impedance, current gain, power gain |
| Mains | 230 V AC ±10%, 50 Hz, with ON/OFF switch, fuse and indicator lamp |
| Size / weight | W 340 x H 125 x D 210 mm; about 1.5 kg |
| Also required | Function generator and 20 MHz oscilloscope (not included) |
Where This Is Used
Used in analog electronics labs on amplifier measurements; a discrete-transistor comparison is the Audio Amplifier (5W, 4 Ohms) with power supply (Product ID: 12233). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What IC does the amplifier use?
The LM380 audio power amplifier IC.
What is the decade box used for?
As a variable resistance for input and output impedance measurements; it gives 0-110,010 Ω in 30 steps.
What test equipment is needed?
A function generator and a 20 MHz oscilloscope.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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