This is the simple RF Transmitter using LM317 Circuit Diagram. Already we saw that the LM317 has hundreds of utilities besides a voltage regulator, how in this article of a audio amplifier with the LM317. Now that circuit the LM317 works for transmit radio waves in CW. The transmitter was done by SM0VPO and works very well, only not found the description the coil.
RF Transmitter using LM317 Circuit Diagram
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