Under this name, Electronics Now magazine published this laser projector in its last issue of November 1999 to “freeze” moments and thus determine their speed. The circuit uses a LASER diode.
The input impedance of this circuit is about 700 k ohm and the output impedance is about 1 k ohm....
We found this circuit in the November 1974 Radio Electronics magazine. The capacitors determine the...
This circuit allows you to use a calculator as a timer by directly activating a sum key with...