This RF circuit measures transmission power from 0.25 W to 10 W. The maximum frequency depends on the diode and the gauge is an analog instrument. A multimeter can be used instead.
This 4-digit counter uses CMOS integrated circuits and is powered by voltages from 6 to 12 V. The...
This circuit can use almost any operating system and has a high input impedance. The power supply...
This circuit was obtained from a 90s Radio Electronics. The components used are from that time. The...