Projects in the January 2000 issue of EPE Magazine | |
![]() |
![]() No, it's snow joke - "you'll tide" yourself over the Christmas holidays with our simple electronic novelty, which adds a sparkle to the humblest festive decorations. An ideal Starter project which uses a simple op-amp based oscillator circuit to drive a number of l.e.d.s in anti-phase. Safe, battery operated low cost design, you can make your own indoor snowman using expanded polystyrene tiles. Just the thing for happy holidays. |
![]() |
![]() This highly effective circuit, produced by an automotive electronics designer, helps warn of the possibility of black ice. It is based on a diode voltage drop detector and has a simple coloured l.e.d. signal which helps give advance warning of possible sub-zero temperatures outside the vehicle. |
![]() |
![]() Our educational electronics series continues with basic resistive experiments and Ohm's Law, utilising our free interactive software. Join us in our practical experiments using potentiometers and light-dependent resistors. |
![]() |
|
![]() |
Versatile Burglar
Alarm We present an easy-to-construct closed loop burglar alarms system that is readily extendable. It's also ideal as a secondary back-up system. It features auto alarm switch off, is easily expanded and has a built-in test facility. |
Also in this issue - New Technology Update looks at SAW devices, Practically Speaking offers a novice's guide to mains power projects and Circuit Surgery examines some aspects of basic transistor amplifiers and more on op.amps. |
|
|