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Posts tagged BPF

Circuit diagram 75 Meter QRP SSB Transceiver

The 75 Meter QRP SSB Transceiver Theory of Operation 6-30-03 In general, the transceiver switches the 4-element 1500 ohm xtal BPF ends between the inputs and outputs of the two SA602s to reverse the signal flow for R/T operation. Since no IF amplifier is used in the design, 20 dB of additional receiver gain is […]

The control Lights 220V circuit

The control Lights 220V circuit could be realized using transformer The control Lights 220V circuit could be realized using transformer

Guideline Rules and designing PCB

Guideline Rules and designing PCB

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

1500W UPS circuit

1500W UPS circuit using IC LC3524, IRFZ44 1500W UPS circuit using IC LC3524, IRFZ44

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