This circuit uses an FM IF transformer for tuning. The circuit is from a Radio Electronics magazine from April 1990.
Found in a 1964 Electronic Design this circuit makes use of components of the era. The output is 2 V...
The LM2904 is not very common today, but common comparators and operationals can be used in the...
This stage is intended to receive modulated optical signals, using as a receiver a photodiode....