The purpose of this circuit is to check the linearity of SSB amplifiers. The circuit was found in an old documentation for hams. The diode is a general purpose detector type.
Found in a 90s Popular Electronics, this circuit is intended for amplifying analog video signals....
In the figure we have an anti-ring or debouncer circuit with 555. The duration of the pulse is...
Bike speedometer (CB20497E) This circuit can be powered by a solar cell. The circuit is from a...