| Table of Contents Elektor July/August 2010 ● ‘Always on’ for PCs ● 12-volt Cellar Drain Pump ● 3D LED Pyramid ● 3-Pin Fan in 4-Pin Socket ● 8-channel DTMF Link: Decoder ● 8-channel DTMF Link: Encoder ● AC Power Indicator ● Adjustable Low-voltage Power Supply ● AM Receiver with Quadrature Mixer ● Analogue Electronic Key ● Animal-friendly Mousetrap ● Astrolamp ● ATM18-DIP ● Automatic Rear Bicycle Light ● Bat ● Bench PSU for PC ● Binary Clock ● Breadboard as Hotplate ● Car Alarm Sound Booster ● Car Radio Booster ● Cheap Bicycle Alarm ● Clock Pulse Generator ● Crystal Pulling ● Crystal Tester ● Daggerboard Position Detector ● Deep Discharge Protection for 12 V Batteries ● Digital Thumbwheel Switch ● Discrete Low-drop Regulator ● DIY Front Panels ● DIY SMD Adapter ● Dynamic Limiter ● Economical On/Off Power Switch ● Electret Mic Booster ● Emergency Stop ● Fast Reliable Vias ● Flashing Lights for Planes and Helicopters ● Front Panel Design Program ● Front Panels the Mouse Mat Way ● Glass Blower ● Green/Red Multiflasher ● Ground-free DVM Module Supply from 5 V ● Hexadocube 2010 ● Identifying Stepper Motors ● Ignition Timer ● Indicator for Dynamic Limiter ● Intelligent AC Power Bar ● L200 charger circuit ● LED Bicycle Light Revisited ● LED Tester ● Lights Control for Model Cars ● Line Input for Zoom H2 ● MCS08DZ60 Evaluation Board ● MicroMinimal Thermometer ● Mini Sixties Plus ● Mobile Phone TX Demo ● Modeller’s Clock ● Musical Horn for ATBs ● Network Wiring Tester ● No-CA3080 Guitar Compressor ● Outdoor Lighting Controller ● Petrol/Diesel Level Sensor ● Phase Coupler for PLC or X10 Network ● PIC RJ-45 Cable Tester ● PIC/C or VHDL/FPGA for RFM12 TX/RX ● Play ‘Simon’ ● Power Saver ● Powerline Voltmeter ● Pulse Receiver ● Quartz Clock Timebase ● Rapid Test and Measurement ● Remote Control ● Remote-controlled Preamp with Digital Pot ● Reverse RIAA Adaptor ● RGB Synchronizing Fireflies ● Sailor’s Battery Meter ● Scope Text ● Shunting Lights for DCC Locomotives ● Simple LED Constant Current Source ● Simple RF Noise Source ● Six-way Switch ● Solar Cell Battery Charger/Monitor ● Sweep your Function Generator ● Temperature Logger for the Fridge ● The Elektor DSP radio ● DSP world receiver with USB interface ● The LM3410 LED Driver ● Thermometer with Four-Digit LED Display ● Timer for Battery-Powered Tools ● Tiny Pulser ● Tiny Timer ● Touch-controlled Dimmer ● Underfloor Heating Controller ● Universal IR Remote Control Tester ● Universal PWM Driver ● Universal Timer with Zero Standby Current ● USB Tilt Sensor ● USB/TTL Serial Cable: Extension & Supplement ● Variable Crystal Filter ● Vest Pocket VHF FM Test Generator ● Virtual 9 V Battery ● Voltage Difference Magnifier ● Voltage Monitor ● Water Alarm ● Waterproof Bathroom Switch ● Whistler: Electronic Trainer/Coach ● Wireless Alarm Transmitter and Receiver ● Zapper for Electrotherapy |