We found this circuit in a 1996 publication. The circuit uses components that are still common. The timing depends on C1, which can be changed, and the triac can be of any type.
In the figure we have the way to use a shift register to divide the frequency of a signal by 9....
We found this circuit in Texas Instruments documentation from 1986. The circuit produces a...
This interesting transformerless class B output stage was found in a patent registration published in...