This dual flasher for high brightness LEDs was found in an American documentation from the 90's. The circuit can be powered by lower voltages with the reduction of R1 and R4.
This is the typical audio amplifier for a 1967 television. We found it in a magazine from the...
This alarm is designed for doors and windows, but nothing prevents it from being used in cars,...
With a unijunction transistor and a tunnel diode it is possible to obtain rise times of 1 ns with...