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.
This circuit, which can be used on an optical link, is suggested by the Texas Instruments...
This source, from a 1998 publication, can be used as a battery charger. The diodes are for 10 A x...
We found this circuit in an old publication on oscilloscopes. Its purpose is to observe the Ie /...