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.
We found this two stage transistor amplifier circuit using RC coupling in a magazine published in...
With a touch of S1 this circuit keeps a small strand of nichrome warm enough to light a cigarette....
August 2016 - It can be obtained from Mouser Electronics the new temperature and humidity sensors from...