We found this circuit in the Linear Applications Hanbook of the National Semiconductor in 1994. The semiconductors used are not very common today.
This fixed-time circuit, found in the 2006 documentation, activates a load after a certain time....
This is the receiver circuit for the PFM (pulse rate modulation) transmitter of the previous...
This circuit was found in a 70s American documentation. The converter can be of any type and the...