12Vdc to 9,7.5,6 Vdc circuit This simple converter using a Zener diode and a transistor into a 9V DC 12V DC battery power to the maximum 1A. The circuit is very simple to build, and requires only 3 electronic components, resistors, zener diodes and transistors. The 2N3055 transistors, 1N4738A Zener diode or Zener voltage and the [...]
This is design for temperature sensor that is based ATMega 8. LM35 is using for sensing the temperature. This IC is cheaper than the price of this component is also easy to be in the market. This is the figure of the circuit. LM35 have 10mV voltage change per 1 degree centigrade. LM35, in principle, [...]
This is a design for audiometer circuit. This audiometer is an instrument used for the diagnosis threshold of human hearing to give some particular audio frequency and also a certain level of intensity. Raised from the signal generator sinus and selected using a multiplexer 4051. Amplitude or intensity of sound can be arranged through the [...]
This circuit is auto fan or cooling fan for your computer,electronic project,the circuit is simply to apply to your project . Couple Notes: Auto Fan and Cooling Circuit Th1, the 50K thermistor is a standard type. I was looking for a bar or rectangular thingy. Available from Tandy / Radio Shack. Almost any type will [...]
Bass Booster Stereo Preamplifier Circuit Parts: P1_________________10K Log.Potentiometer (Dual-gang for stereo) P2________________100K Log.Potentiometer (Dual-gang for stereo) (See Notes) R1,R2_____________100K 1/4W Resistors R3,R6______________15K 1/4W Resistors R4_________________10K 1/4W Resistor R5_________________22K 1/4W Resistor R7__________________1K 1/4W Resistor R8________________560R 1/4W Resistor C1,C2,C5____________2µ2 63V Electrolytic Capacitors C3________________470µF 35V Electrolytic Capacitor C4__________________1µF 63V Polyester Capacitor C6_________________47nF 63V Polyester Capacitor C7_________________22µF 25V Electrolytic [...]
Line 6 Digital Wireless Systems XDS-PLUS Pro Power to Go – Metal Chassis Stompbox Digital UHF Wireless. The XDS-PLUS is a rugged digital instrument wireless system sporting many features of the XDR Series packed into a metal chassis stompbox receiver. The result: extended frequency response and extended operating range that only a Line 6 can [...]
This project flashes 18 LEDs at three different rates and you can use these to create a Christmas decoration of your choice. The circuit is kept simple (and cheap!) by using the 4060B IC which is a counter and oscillator (clock) in one package. The circuit requires a 9V supply, such as a PP3 battery. [...]
