Transistor Biasing Techniques & Stability with power supply 1KHz, Oscillator and 3 meters Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12218
Indian Lab Suppliers supplies the Transistor Biasing Techniques & Stability with power supply 1KHz, Oscillator and 3 meters (Product ID: 12218) as part of its electronics engineering lab equipment range. It is a training board for comparing four transistor bias circuits for Q-point shift when the transistor is changed and when it is heated.
Quick Answer
Fixed bias, collector-to-base bias, emitter (self) bias and emitter bias with a voltage divider are each wired with a low-β and then a high-β germanium NPN transistor to see how far the Q-point moves. A small electric oven heats the transistor, and the supplied 0–100 °C thermometer in its clamp tracks temperature for a qualitative stability comparison. Base current is read on a DC microammeter (0–100 µA), collector current on a 0–25 mA milliammeter and voltage on a 0–15 V voltmeter. A 12 V DC, 100 mA regulated supply and a 1 kHz, 0–1 V sine source are built in; a 20 MHz oscilloscope is also needed. The oven gets hot, so handle the transistor with care.
Key Specifications
| Parameter | Detail |
|---|---|
| Transistors | Two germanium NPN, low β and high β |
| Bias circuits | Fixed, collector-to-base, emitter, emitter + voltage divider |
| Supply | 12 V DC at 100 mA, IC regulated |
| Signal source | 1 kHz sine, 0–1 V variable |
| Meters | DC microammeter 0–100 µA; milliammeter 0–25 mA; voltmeter 0–15 V; 65 mm dials |
| Heating | Electric oven; thermometer clamp; 0–100 °C thermometer supplied |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse, jewel light |
| Also required | 20 MHz oscilloscope |
Where This Is Used
Used in analogue electronics practicals on amplifier design. Related: Hybrid Parameters of a Transistor with power supply 1KHz, oscillator and 1 meter (Product ID: 12206) and Semi-Conductor Devices Characteristics with power supply and 3 multi range meters (Product ID: 12197). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Which bias circuits are compared?
Fixed, collector-to-base, emitter, and emitter with voltage divider.
How is temperature changed?
With the built-in electric oven around the transistor.
Is a thermometer included?
Yes, a 0–100 °C thermometer with clamp.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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