Here is another equally cool low voltage alarm circuit for your glider receiver battery. [more]
A pulse width modulator (PWM) is a device that may be used as an efficient light dimmer or DC motor speed controller. The circuit described here is a general purpose device that can control DC... [more]
When you first press the brakes, this circuit will turn on your 3rd brake light via the main brake lights. After about a second a series of short strobe pulses occur. The number of pulses... [more]
This card is a "season type" interface card to connect your PC to your satellite decoder. Using programs like "Decrypt" you will be able to view a number of encoded transmissions in Videocrypt and D2MAC. [more]
Flying hand launch gliders means living with small capacity receiver NiCad battery packs. These small packs are light, but have the distinct disadvantage of rapidly depleting. You can carefully time your flights, but you end... [more]
Precision Metronome and Pitch generator [more]
The target of this project was the design of a small portable mixer supplied by a 9V PP3 battery, keeping high quality performance. The mixer is formed assembling three main modules that can be varied... [more]
All resistors are 1/4W.The circuit is powered by 9...15V DC or AC. When In Circuit Programming (ISP) connectors are used, is possible the programmer to be powered from target’s power source. Diodes D2 and D6... [more]