This is a commercial circuit from the year 1958. Transistors are germanium types and transformers and coils are hard to fild today. The circuit is destinated to the reception of medium wave stations.
The circuit shown is from the 1994 Linear Applications Handbook from National Semiconductor. The...
The integrated circuits used in this CMOS astable can be either 4011 or 4001, although 4001 is...
This circuit is from a Mallory 1968’s documentation. The integrated circuit is of the time and the...