Emitter Follower (CC) with power supply Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12133
Indian Lab Suppliers supplies the Emitter Follower (CC) with power supply (Product ID: 12133) as part of its electronics engineering lab equipment range. It is a training board for studying the common-collector (emitter follower) transistor stage used as a buffer.
Quick Answer
An emitter follower has a voltage gain just below 1, a high input impedance and a low output impedance, which is why it is used to drive low-impedance loads. This board uses an NPN transistor with a built-in IC-regulated 9 V DC, 50 mA supply, and students measure all three quantities. An audio frequency generator, decade resistance box and 0–500 mV AF millivoltmeter are needed separately.
Key Specifications
| Parameter | Detail |
|---|---|
| Circuit | Emitter follower (common collector), NPN transistor |
| Built-in supply | 9 V DC, 50 mA, IC regulated |
| Mains input | 230 V ±10%, 50 Hz AC, with mains switch, fuse and pilot lamp |
| Experiments | Voltage gain, input impedance, output impedance |
| Connections | 4 mm terminals; stackable spring-loaded patch cords, 0.5 m |
| Weight | 3 kg (approx.) |
| Dimensions | W 340 x H 110 x D 210 mm |
| Also required | AF generator, decade resistance box, AF millivoltmeter 0–500 mV |
Where This Is Used
Run it next to the Audio Amplifier (CE) with power supply (Product ID: 12132) so the class can compare common-emitter and common-collector stages. It is mains powered; keep the fuse fitted and switch off before rewiring. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Why is the voltage gain less than 1?
The output is taken from the emitter, which follows the base voltage minus the base-emitter drop.
Which transistor type is fitted?
An NPN transistor.
What else is needed?
An AF generator, decade resistance box and an AF millivoltmeter reading up to 500 mV.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Electricity and Magnetism
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