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Posts tagged lm386、

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 […]

Making Wireless FM microphone

Making Wireless FM microphone as a beginner project is interesting, crystal oscillator can be controlled, with a harmonic change to 2p7-5 crystals. The oscillator will then be very stable, so stable in fact, that he could not even set! This means you can only use it to send CW .One solution to this problem would […]

60W Audio Amplifier Circuit

60W Audio Amplifier Circuit 60W Audio Amplifier Circuit using STK4392

audio amplifier using LA4700

Stereo audio amplifier circuit using LA4700

Circuit Amplifier 40W using STK465

Circuit Amplifier 40W using STK465 Audio stereo power 50W Amplifier Circuit using STK465

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