The maximum frequency of this circuit is 500 kHz. We found it in a documentation for radio amateurs from the 1980s. The integrated circuit used is uncommon today.
We found this circuit in documentation from Analog Devices from the 90s. The components are from...
Found in American documentation, this circuit can be used as a shield. The technology is CMOS and...
This interesting multivibrator was found in an Italian magazine that no longer exists. This is...