We found this circuit in the June 1991 issue of Radio Electronics magazine. The integrated circuit is still available. The table gives the component values.
Found in an American documentation from 1968, this circuit senses the temperature through an...
Found in a 70s RCA manual, this circuit uses transistors from the era. Equivalent types can be...
This is yet another balanced modulator circuit for SSB transmission. This two-diode circuit was...