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Posts tagged 66

Electronics Schematic Diagram alarm Door Bell circuit using IC UM 66 part 1

This is a slight modification of that circuit. In the previous circuit you have to keep the switch pressed for making the IC play the full music. Here if once the push button is pressed C1 is charged and the transistor Q2 will keep the IC playing the music till it ends. The time for […]

MAX2232, MAX2233 900MHz ISM-Band, 250mW Power Amplifiers with Analog or Digital Gain Control

MAX2232, MAX2233 900MHz ISM-Band, 250mW Power Amplifiers with Analog or Digital Gain Control, MAX2232  MAX2233 low-voltage, silicon RF power amplifiers (PAs) are designed for use in the 900MHz ISM band. They operate from a single +2.7V to +5.5V supply, allowing them to be powered directly from a 3-cell NiCd or a 1-cell Lithium-Ion battery. The […]

wireless Circuit Using 555

wireless Circuit Using 555 Transmitter’s range is 100 m in the distance using the 9V power supply and matching the antenna. Circuit diagram is built by IC timer 555 R1 : 1K C1 : 0,1 C2 : 10

op amps

op amps op amps circuit using KA22234 op amps op amps

20 w Amplifier stereo circuit

20 w Amplifier stereo circuit using TDA 2004 Amplifier stereo circuit using TDA 2004 R1 120K Ohms R2, R4 1K Ohms R3, R5 3.3 Ohms R6, R7 1 Ohms C1, C2 2.2µF C3 10µF C4, C6 100µF C5, C7 100µF C8, C9 0.1µF C10, C11 1000µF TO 2200µF CI TDA2004A it is a circuit integrated […]

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