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Posts tagged Automatic Water Level Meter

AutoScout circuit for Automatic Water Level Meter

Switch Control circuit for Automatic Water Level Meter using CD4001

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 […]

Making 15W FM RF Amplifier using 2SC253

This is a FM RF amplifier which build based on RF Power Transistor 2SC2539. 2SC2539 is a silicon NPN epitaxial planar type transistor designed for RF power amplifiers in VHF band mobile radio applications. L1: 2T Coil diameter:4mm L2: in series 6pcs Toroidal ring L3: 4T Coil diameter:10mm L1: 3T Coil diameter:10mm

linear power supply circuit

linear power supply circuit using LM317, CD4541

Phase Invert Switch circuit diagram

Phase Invert Switch circuit diagram

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