Amplitude Modulation and Demodulation with power supply, oscillator and 1 meter (V.V) Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12211
Indian Lab Suppliers supplies the Amplitude Modulation and Demodulation with power supply, oscillator and 1 meter (V.V) (Product ID: 12211) as part of its electronics engineering lab equipment range. It is a training board that produces an AM signal with a tuned triode valve power amplifier and recovers the audio with a diode detector.
Quick Answer
A built-in 200 kHz carrier source drives the triode through a ferrite-core tuned RF transformer, and a 400 Hz modulating signal is applied through an audio modulation transformer. The valve gets 175 V DC at 10 mA (unregulated) on the anode and 6.3 V AC at 400 mA for the filament; a 10 mA DC milliammeter monitors plate current. The diode demodulator then recovers the 400 Hz tone, and a 20 MHz oscilloscope shows modulation depth and the detected output. The 175 V anode supply is hazardous: switch off before touching connections, and use under supervision.
Key Specifications
| Parameter | Detail |
|---|---|
| Valve | Triode, 9-pin base, panel mounted and wired |
| Anode supply | 175 V DC at 10 mA, unregulated |
| Filament supply | 6.3 V AC at 400 mA |
| Plate current meter | 65 mm rectangular dial, 10 mA DC |
| Signal sources | 200 kHz carrier; 400 Hz modulating |
| Transformers | Audio modulation transformer; ferrite-core tuned RF transformer |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse, jewel light |
| Also required | 20 MHz oscilloscope |
Where This Is Used
Used in communication electronics practicals on modulation and detection. Related: Study of Crystal Detector with power supply and 2 meters (C.R.) (Product ID: 12226) and Phase Locked Loop IC 565 with power supply and 1 meter (Product ID: 12205). Related items: Study of Diode Detector with power supply and 1 meter (Product ID: 12264). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What carrier and audio frequencies are used?
200 kHz carrier and 400 Hz modulating signal.
What detects the AM signal?
A diode demodulator circuit.
Is there high voltage on the board?
Yes, 175 V DC on the anode, so work with power off.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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