Projects in the September 2000 issue of EPE Magazine | |
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![]() This superbly designed vertically and horizontally rotating active antenna will enhance the listening pleasures of Medium Wave (a.m.) radio enthusiasts. Quality mechanical controls for precise tuning. Varicap design with MOS amplifier for enhanced quality. Full constructional plans for the mechanical assembly are included. Circuit uses BF981 dual-gate MOSFET and KV1236 varicap diode. An excellent project for radio enthusiasts. |
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![]() Another "Top tenner" design, this fun unit represents a steeplechaser with a simple travelling l.e.d., and using a push switch you must negotiate the "jump" successfully. Includes an element of uncertainty - the "horse" may accelerate or hesitate! |
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![]() A regulated 13.2V 1A supply which can easily be modified for 12V output. Suitable for the EPE Moodloop (August 2000). Straightforward 3-terminal regulator design, also an ideal first mains-operated projet for the beginner. |
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Teach-In 2000 Our highly-praised flagship educational series races onwards to the penultimate lesson, Part 11 - Voltage Regulation, Integration and Differentiation. Our free DOS-based interactive software runs on your PC which is physically connected to the solderless breadboard experiments. Our tutorial gives you a "walk through" and encourages you to experiment with real components while observing and learning from the on-screen tutorials. This month we investigate power supply regulation including Zener diodes and three-terminal devices, followed by experiments highlighting the purposes of differentiators and integrators. |
Also in this issue: New Technology Update - how micromagnetic isolation enhances high speed data transfer. Circuit Surgery looks at NiCd, NiMH and RAM batteries. Practically Speaking offers more advice for novice constructors. Net Work - the Internet page - checks out the Google search engine again. Adverts from a diverse range of mail order specialists are included. | |
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