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Analogue and Digital Signals
This activity demonstrates the difference between digital and analogue signals. Students are asked to distinguish betwee… full details...
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Analogue Vs Digital
This activity aims to demonstrate the difference between an analogue and a digital signal. Two circuits are studied, on… full details...
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clock
A Clock that you can use it for your circuits...you can control signal speed with a variable resistor. full details...
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Tuned Circuit
This circuit model demonstrates how a tuned circuit will give maximum output with a particular frequency, the resonant f… full details...
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Varying Voltage with Light Level
Circuit models are used to show how an LDR can generate a voltage that varies with light level. The values of variable … full details...
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Non-Inverting Amplifier
This model demonstrates a non-inverting amplifier being used to amplify signals. Students practice calculating, and adj… full details...
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Inverting Amplifier II
This activity shows the op-amp being used as an inverting amplifier to amplify and attenuate signals. Students observe … full details...
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Difference Amplifier
This demonstrates how the op-amp can subtract one signal from another, and output their difference. Two circuits are us… full details...
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Pulsing DC signal processing
This schematic illustrates the opamp's ability to discriminate a pulsing DC input voltage from a constant DC input voltage and output two different levels of constant DC voltage as a result. It is based on the Velleman PMK120 receiver hobby kit, which monitors... full details...
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Direct Current Filter
This demonstration shows how a capacitor can be used to block the d.c. component of a mixed a.c. / d.c. signal. full details...