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The etched pcb made for the components to be mounted on top. I used a fine paint pen done side by side the pencil drawing.
The S9018 transistor bias will differ from a typical 2N3904 because S9018 is a high gain rather than low gain
The emitter is followed by an inductor L1 1mH. The board could use smt 1206 package of c1, c2 voltage divider.
a nine volt battery source used that is followed by a switch, there are pads for an led and output. Cost is less than $1 USD
The S9018 transistor bias will differ from a typical 2N3904 because S9018 is a high gain rather than low gain
The emitter is followed by an inductor L1 1mH. The board could use smt 1206 package of c1, c2 voltage divider.
a nine volt battery source used that is followed by a switch, there are pads for an led and output. Cost is less than $1 USD
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