alarm circuit diagrams Simple Alarm Circuit using 12C509, 2N7000, 78L05
Archives for Timer
Incubator Timer Circuit
Incubator Timer Circuit The circuit of the proposed incubator egg timer using LM741 This Egg Timer is quick, easy to use
Timer using LM555
Timer using LM555 Electronic Circuit Timer using LM555 LM555 Electronics Schematic Diagram Cascaded Time Delay Circuits part 14
Portable guitar headphone circuit
Portable guitar headphone circuit I built a portable headphone amplifier for testing purposes Headphone amp circuit using : R1 = 10K R2 = 100K R3 = 68K R4 = 1.5K R5 = 3.3K R6 = 330R R7 = 4K7 R8 = 2.2R C1 = 1µF-63V C2 = 100µF-25V C3 = 470µF-25V Q1 = BC239C Q2 […]
High Quality 150W Power Amplifier circuit
High Quality 150W Power Amplifier circuit using 2N3055, 2N2219, 2N3250 only with power supply – and + Short circuit protection, 94dB supply rejection ratio, thermal protection, S/N ratio in excess of 100dB, Open loop gain typically 90dB and 10A quiescent current, 2N3055, 2N2219, 2N3250 is great enough to give you good audio performmance. This power […]
Battery Charger circuit diagram
Battery Charger circuit diagram using PICAXE-08, 1N4004, BC338, 78L05, 7812
Converter 12v
Converter 12v 12V To 24V DC-DC Converter Circuit Converter 12v 12V To 24V DC-DC Converter Circuit Using BY229-400, BC337, LM358 Converter schematic R1, R2, R3, R4, R8, R7 100K 1/4W R5 470 Ohm 1/2W Resistor R6 10K Linear Pot C1 0.01uF Mylar Capacitor C2 0.1uF Ceramic Disc Capacitor C3 470uF 63V Electrolytic Capacitor D1 1N4004 […]
