Indicated for discriminators adjustment in FM and VHF receivers, this circuit was found in a 90s 73 magazine for radio amateurs. The operational amplifier can be a general-purpose type.
This circuit was found in General Electric documentation from 1964. It makes use of a PUT, called the...
The circuit shown in the figure is suggested by ON Semiconductor (www.onsemi.com), based on its...
This circuit for discharging NiCad batteries limits the current to a value that can be adjusted in the...