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.
This ultra-simple 9 V power source was obtained in an Argentine publication of the 1970s, but it...
We found this filter in the 1990 Motorola Linear Databook, but it can be implemented with other...
The AC125 transistor is an ancient germanium type widely used in audio stages as a preamplifier. In the...