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JohnB620

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  • Over the Air Tv Antenna Amp.

    The drawing above the blurry,very blurry,photo shows it well,although you might want to magnify the image with ctrl +. The b lead of the first transistor is connected to a line of sockets that are connected together under the prototype board,so the component leads put through the holes will be connected together.There are four such lines,(with the E lead of each transistor connected to the negative power feed).So it's transistor,resistor,capacitor for left side transitor, and again for the right side.A capacitor on the left to feed the antenna input,a capactor to bridge the first pair to the second pair of circuit traces,and a third capacitor on the rightmost line to output the amplified signal.On the rightmost line of each pair is a resistor,3.3K for left pair,1K for right pair that conn…

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    The drawing above the blurry,very blurry,photo shows it well,although you might want to magnify the image with ctrl +. The b lead of the first transistor is connected to a line of sockets that are connected together under the prototype board,so the component leads put through the holes will be connected together.There are four such lines,(with the E lead of each transistor connected to the negative power feed).So it's transistor,resistor,capacitor for left side transitor, and again for the right side.A capacitor on the left to feed the antenna input,a capactor to bridge the first pair to the second pair of circuit traces,and a third capacitor on the rightmost line to output the amplified signal.On the rightmost line of each pair is a resistor,3.3K for left pair,1K for right pair that connect to the positive power feed.The input capacitor connencts to the first resistor on left,the output capacitor is at the capacitor of the second pair on rightmost line or between the capacitor and the topmost resistor of the second pair of circuit connection lines.I found out this is line amplifier,to boost signals for long cable runs,but it works well as an antenna amp.I tried different transistors and found that ge222's worked well.

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  • JohnB620 commented on pchretien's instructable The Fibonacci Clock

    Could someone write a program to use a puter and monitor?

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