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.
We find this efficient emergency lighting system in a 1987 publication. The circuit keeps a...
This circuit was found in old publication from 1958. The circuit uses germanium transistor, common in...
This circuit is in the very datasheet of Texas Instruments that manufactures the component...