This timer was found in English documentation from the 80's. The integrated circuit is common nowadays and the MOSFET admits equivalent according to the controlled load.
The integrated circuit used in this configuration for noise reduction on FM radios is not common...
This circuit was found in the April 1984 issue of Radio Electronics magazine. The integrated...
We found this circuit in a 1977 National Semiconductor Databook. The circuit can use other FETs...