Electronics Simplified
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Nelson Mandela
Nelson Mandela
Topic | Image | Text | Link |
AR Reference |
Electric shock |
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The Human body can be damaged by current flowing......... | READ MORE | AR Vol 89 No 5 2021 |
Wheatstone Bridge |
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This world is full of electrical sensors of varying types...... | READ MORE | AR Vol 89 No 6 2021 |
Ohm's Law |
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In 1827 a German physicist, Georg Ohm, published a paper on his electrical experiments. The result is Ohm’s Law and the identification of electrical resistance that bears his name. | READ MORE | AR Vol 90 No 1 2022 |
Multimeters |
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Ever wondered how your trusty analogue voltmeter works? A lot goes on inside the meter, but it is all based on Ohm’s Law. | READ MORE | AR Vol 90 No 2 2022 |
Diodes |
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When electricity was discovered, the initial belief was that current flowed from the positive terminal to the negative terminal. | READ MORE | AR Vol 90 No 3 2022 |
Valves |
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Vacuum tubes – thermionic valves – have been around almost since the start of electronics, radio and wireless. | READ MORE | AR Vol 90 No 5 2022 |
Resonant Circuits |
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An important element of any radio communications equipment is the LC circuit. L is the inductance measured in Henries (H) and named after Joseph Henry (1797–1878). The symbol L for inductance was chosen to honour Heinrich Lenz (1804-1865) who pioneered work in electromagnetic induction. | READ MORE | AR Vol 90 No 6 2022 |
Bipolar Transistor |
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In 1879 Edwin Hall, an American physicist, explored the interaction........ | READ MORE | AR Vol 91 No 2 2023 |
Decibels |
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The first time most people hear the expression dB is in relation to sound. Looking at a noise chart..... | READ MORE | AR Vo 91 no 3 2023 |
Op Amps |
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The operational amplifier (Op Amp) is one of the most versatile devices available, and applications using this device are wide spread in both the analogue and digital arenas. | READ MORE | AR Vol 91 No 4 2023 |
Go box |
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Preparing for emergencies | READ MORE | AR Vol 91 No 5 2023 |
VSWR |
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Measuring the VSWR | READ MORE | AR Vol 91 No 6 2023 |
Making sense of circuits |
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Making sense of a circuit diagram, for the first time, may seem to be a daunting task. This article will break down the process of reading a simple circuit diagram into logical steps. | READ MORE | AR Vol 92 No 2 2024 |
Talbot Communications Museum |
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A gem to visit in the Victorian goldfields. | READ MORE | AR Vol 92 No 2 2024 |
Smith Charts |
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A Smith Chart appears complicated, cluttered, and unintelligible to the newcomer. So let us break it down. | READ MORE | AR Vol 92 No 4 2024 |
Hall effect transistors |
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The transistor that doesn't amplify | READ MORE | AR Vol 92 No 4 2024 |
Sun Spots |
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How a spotty sun impacts communications. | READ MORE | |
Transmission Lines |
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Not all coax is the same. | READ MORE | |
Antenna Couplers |
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An antenna tuner does not tune your antenna. | READ MORE | |
Signal reports |
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Understanding signal reporting. | READ MORE | |
Volt and amp meters |
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Inside meters | READ MORE | |
Foundation digital |
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Basic digital | READ MORE |