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Hobby & Models
- Digital Step-Km Counter
- Max. range: 9.950 meters with two digits
- Slip it in pants' pocket for walking and jogging
- One-IC
two-tones Siren
- Double tone Police sound
- Single tone old ambulance sound
- Personal Alarm
- Small, portable, anti-bag-snatching unit
- Also suitable for doors and windows control
- Variable DC Power Supply
- Voltage range: 0.7 - 24V
- Current limiting range: 50mA - 2A
- LED or Lamp Flasher
- Minimum parts counting - Improved version
- 3V battery operation
- Two-wire Lamp Flasher
- Ideal to operate 3 to 24V DC existing on-circuit lamps
- LED operation is also possible
- LED or Lamp Pulser
- Astonishing effect
- 4.5V supply
- Bicycle back Safety Light
- Flashing 13 LED unit, 3V supply
- Also suitable for jogger/walkers
- Jogging Timer
- 3V Battery powered
- Beeps after a fixed minutes delay
- Whistle Responder
- Beeps when hears your whistle
- A gadget suitable for key-holders, games etc.
- Pulse-Generator & Signal-Tracer
- Dual-purpose test-instrument
- Very simple circuitry, 1.5V Battery-operated
- Magnetic-Radiation Remote-Control
- Short-range 35KHz operation, single-channel units
- Simple circuitry, no outer antennas required
- Capacitive Sensor
- Special design for shop-windows animation
- Useful for many types of touch controls
- Bells ring Generator
- Three circuit options
- Can be synchronized to Christmas tree flashing lights
- Dancing LEDs
- LED sequencer: follows the rhythm of music or speech
- 9V Battery-operated portable unit
- Fading LEDs
- Two strips of LEDs fading in a complementary manner
- 9V Battery-operated portable unit
- LEDs or Lamps Sequencer
- Very simple, versatile modular design
- No limits to the number of modules used in the ring
- Cuckoo-song Generator
- Agreeable, very close sound imitation
- Suitable for sound effects, door-bells etc.
- Brightness Control for small Lamps
- Switch-mode driven 1.5V bulbs
- Portable unit - 3V battery supply
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Award winner!
Published on
ELECTRONICS WORLD
"Circuit Ideas"
June 2000 issue,
page 458
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