Tag: variable resistor

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 [...]

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. [...]