This precision bench test circuit can deliver currents in a range of 10 uA to 10 mA. The circuit is from an 80's documentation. The components are from the time.
This circuit is intended to measure the power of a transmitter for the citizen's band (11 meters or...
This metronome can use either a high impedance phone or a crystal phone. You can use a small...
The circuit shown in the figure modulates a low power infrared LED with TTL signals. The circuit can...