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 circuit shown is from an old European publication. In it we have the way to activate a relay...
We found this circuit in a European publication from the 1990s. Transistors are still common types...
This circuit was found in an American documentation and can be added to common amplifiers of any...