This circuit was found in Radio Electronics from the 90s. The CMOS integrated circuit is a PLL not easy to obtain today. The output stage can be exchanged for another one with greater power.
A rectangular signal applied to the input of this circuit becomes a negative pulse, which...
This circuit consists of a common version of the sequences with 4017 and 555, including a small...
Another of the many similar configurations we have in this section. This one is from a Radio...