Contents

Plus

Colophon

The Elektor DSP Radio
Hexadocube Puzzle
Remote Control
Elektor SHOP
Coming Attractions

Audio, Video & Photography

Dynamic Limiter
Electret Mic Booster
Glass Blower
Indicator for Dynamic Limiter
Line Input for Zoom H2
Mini Sixties Plus
No-CA3080 Guitar Compressor
Remote-controlled Preamp with Digital Pot
Reverse RIAA Adaptor

Computers, Software & Internet

3-Pin Fan in 4-Pin Socket
'Always on' for PCs
Network Wiring Tester

Hobby, Games & Modelling

Bat
Car Radio Booster
Cheap Bicycle Alarm
Clock Pulse Generator
Daggerboard Position Detector
DIY Front Panels
Flashing Light for Planes and Helicopters
Front Panel Design Program
Front Panels the Mouse May Way
Green/Red Multiflasher
Lights Control for Model Cars
Modeller's Clock
Musical Horn for ATBs
Play 'Simon'
Rapid Test and Measurement
Shunting Lights for DCC Locomotives
Underfloor Heating Controller
Whistler: Electronic Trainer/Coach

Home & Garden

12-volt Cellar Drain Pump
Analogue Electronic Key
Animal-Friendly Mousetrap
Astrolamp
Binary Clock
Intelligent AC Power Bar
Outdoor Lighting Controller
Phase Coupler for PLC or X10 Network
Power Saver
Powerline Voltmeter
Solar Cell Battery Charger /Monitor
Temperature Logger for the Fridge
Timer for Battery-powered Tools
Touch-controlled Dimmer
Universal Timer with Zero Standby Current
Water Alarm
Waterproof Bathroom Switch
Wireless Alarm Transmitter and Receiver

Microcontrollers

ATM-18 DIP
Crystal Pulling
MCS08DZ60 Evaluation Board
PIC RJ-45 Cable Tester
PIC/C or VHDL/FPCA for RFM12 TX/RX
Quartz Clock Timebase
Tiny Pulser
Tiny Timer
USB/TTL Serial Cable: Extension & Supplement

Power Supplies, Batteries & Chargers

Adjustable Low-voltage Power Supply
Bench PSU for PC
Deep Discharge Protection for 12 V Batteries
Discrete Low-drop Regulator
L200 Charger Circuit
The LM3410 LED Driver
Sailor's Battery Meter
Simple LED Constant Current Source
Universal PWM Driver
Virtual 9 V Battery

RF (radio)

AM Receiver with Quadrature Mixer
Crystal Tester
Simple RF Noise Source
Variable Crystal Filter
Vest Pocket VHF FM Test Generator

Test & Measurement

AC Power Indicator
Ground-free DVM Module Supply from 5 V
Ignition Timer
LED Tester
MicroMinimal Thermometer
Petrol/Diesel Level Sensor
Sweep your Function Generator
Thermometer with Four-Digit LED Display
Universal IR Remote Control Tester
USB Tilt Sensor

Miscellaneous Electronics & Design Ideas

3D LED Pyramid
8-channel DTMF Link: Decoder
8-channel DTMF Link: Encoder
Automatic Rear Bicycle Light
Breadboard as Hotplate
Car Alarm Sound Booster
Digital Thumbwheel Switch
DIY SMD Adapter
Economical On/Off Power Switch
Emergency Stop
Fast Reliable Vias
Identifying Stepper Motors
LED Bicycle Light Revisited
Mobile Phone TX Demo
Pulse Receiver
RGB Synchronizing Fireflies
Scope Text
Six-way Switch
Voltage Difference Magnifier
Voltage Monitor
Zapper for Electrotherapy