This site provides schematics of various radio projects that you can experiment yourself.
The figure shows super simple CW transmitter with bare minimum components
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What does the 100uH inductor do? Would this circuit work with other crystals?
the inductor blocks rf from escaping
This transmitter will work with a 80m, 40m and a 20m crystal. Just adjust variable cap before antenna to tune for lowest swr. Of course type of antenna will make a big difference. I built this and used on 40m with a 33 ft long wire and tuner.
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ReplyDeleteWhat does the 100uH inductor do? Would this circuit work with other crystals?
ReplyDeletethe inductor blocks rf from escaping
DeleteThis transmitter will work with a 80m, 40m and a 20m crystal. Just adjust variable cap before antenna to tune for lowest swr. Of course type of antenna will make a big difference. I built this and used on 40m with a 33 ft long wire and tuner.
ReplyDelete