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Posts tagged 12

hspd 12 piv circuit using 2N3439

hspd 12 piv circuit using 2N3439 hspd 12 piv circuit using 2N3439 R1 …………. 33K ohm R2 …………. 100 ohm VR …………. 1K ohm c1 …………. 50uF – 450V TR1 ………… 2N3439 TR2 ………… 2N3439 T1 Transformer Pri: 110 – 220V Sec: 0 – 220V 5mA

500 mW Audio Amplifier Circuit using LA4520

500 mW Audio Amplifier Circuit using LA4520

LM339 IC for Voltage Detector and Circuit Diagram

LM339 IC for Voltage Detector and Circuit Diagram

Police siren circuit

Police siren circuit using BC547, 555 Police siren circuit using BC547, 555 IC1 555 RV1 1MΩ Q1  BC547 Q2  BC547 R2  1K Ω R3  1K Ω R5  330 Ω R6  680 Ω R7  680 Ω RV2 50K Ω RV3 50K Ω C1  33 µF C2  10 µF C3  1 µF C3  1 µF C4  1 […]

5W Audio Amplifier Circuit using AN7140

5W Audio Amplifier Circuit using AN7140

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