This is yet another balanced modulator circuit for SSB transmission. This two-diode circuit was found in a 1980s documentation. The diodes are commonly used.
The traditional circuit was taken from a French magazine Radio Plans that no longer exists but can...
This circuit uses a capacitor to store energy. The capacitor is charged by closing S1 by a moment. Them,...
This timer uses common components today. It activates a relay after intervals that can be adjusted up...