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Posts tagged xtal

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 […]

Radio 810 mw circuit

Radio 810 mw circuit using LM386 and ZN414 Radio 810 mw circuit using LM386 and ZN414

Radio Shortwave UHF 433MHZ

Radio Shortwave UHF 433MHZ circuit

Power Supply TV China circuit

Power Supply TV China circuit Power Supply Circuit Diagram Supplay tv circuit diagram free

How to a solar cell

How to a solar cell Solar cell / photovoltaic cells, is a semiconductor device consisting of a pn junction diode, where, in the presence of sunlight to create electrical energy, because it has the function of the tool can convert sunlight directly into electricity. Solar cells / photovoltaic cells made in 1839 by Edmund Becquerel, […]

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