This 3-transistor buzzer or buzzer is a classic type found in the July 1998 issue of Electronics Now magazine. The power rating depends on the output transistor.
This useful benchtop power supply uses a single LM350 integrated circuit as a regulator. The...
This circuit is for the system that has the receiver CB17134E. The emitting LED must be installed in a...
This circuit generates signals that depend on Ct and the 10k trimpot adjustment. See the math...