Author: Andrew
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16 pF to 650 pF DIY variable capacitor
16 pF to 650 pF DIY variable capacitor from ordinary aluminium foil (alufoil), A4 paper and a cardboard tube from an empty alufoil package. Roll one round of alufoil on the blank cardboard tube. Fix it with tape. Leave 5 cm / 2 inch free from alufoil at one end. Roll a A4 paper around,…
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How to wind a perfect DIY inductor
Take something of a fitting diameter that is as smooth as the side of a full, unopened soda can. Wrap a double layer of printer paper on it. Once bent, for instance. Fix it with tape as a tube, but let it be just about slidable over the can. This layer is helpful in many…
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Revolutionize Your Analog Designs Instantly!
🔍 Discover the Transistor Amplifier Calculator! Perfect for learning, teaching, or prototyping analog electronics. Design and explore BJT amplifier stages effortlessly. ✨ Simplify your workflow with real-time results, multi-stage design, and interactive graphs. Ideal for students, educators, and engineers. 👉 Try it now and transform your analog electronics projects! Start Experimenting Or read more about…
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BJT Transistor Amplifier Calculator
The last month, I’ve released the BJT Transistor Amplifier Calculator under this link: https://ufelectronics.eu/bjt_amp_calculator. Below you can see some screenshots, head for a intro video on Youtube, or join a chat about it on Discord. Screenshots Intro video on Youtube A updated video introduction can be seen on Youtube: https://youtu.be/F6OxV1kNuMo?si=Z-4_lQc3cDVW5_VD Discord Join the discussion in…
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DIY Single to Dual Power Supply from 5V – 15V, with Virtual Ground
DIY Single Rail to Double Rail with Virtual Ground / Rail Splitter / Voltage Divider Just released a video on how to create a small dual power supply based on a single power supply of between 5V an 15V. Schematic update 2028.03.03. NOTE: The pinout in the schematic does NOT represent the μA741C pinout. The…