This circuit was found in the July 1994 issue of Electronics Now magazine. The relay can be rated at up to 12 V and 100 mA. The transistor is a general purpose transistor.
This circuit controls the passage of the signal from an input to an output using a DC signal from a...
The circuit shown in the figure is a high-power version for Metronome 1, exciting an ordinary...
This is a general purpose pramplifier launched in Brazil by Philips in the years 70. The BC549 is...