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STK439 Circuit

Audio Amplifier Circuit Using STK439

400 watts full power transistor audio amplifier circuit

400 watts full power transistor audio amplifier circuit 400 watts power transistor audio amplifier circuit using TR 7199P, 6L6GC, 6SN7 Parts: R1 10 kΩ         C1 0.22 µF      Q1 7199 P R2 100 kΩ       C2 0.2 µF        Q2 6L6GC R3 220 kΩ       C3 0.5 µF        Q3 6L6GC R4 820 kΩ […]

How to make SWR measuring Transmitter output Power

How to make SWR measuring Transmitter output Power? SWR is not difficult to make, although the circuit is very simple SWR SWR but it has the function of the transmitter output power measured with any accuracy, and how to add components to SWR SWR-PWR schema. If you change the resistor values increase the componint that […]

Driver LED circuit for Counter

Driver LED circuit for Counter using 555, 4046B, 4017B, 1N4004, BD649, 7805

5W Audio Amplifier Circuit using AN7140

5W Audio Amplifier Circuit using AN7140

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