Used by radio amateurs to accompany telegraphic transmissions, this circuit generates an audio tone. The power comes from the transmitted RF signal itself.
This TTL circuit uses LED indicators and must be powered by a voltage of 5 V. The capacitor...
This circuit measures the power of a transmitter being sandwiched between the antenna output and the...
This power supply was originally developed for the CIR10160, but can be used with other VHV (Very...