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 uses amplifiers from the 60's American company Microlin. The circuit can be designed...
This power control from Motorola's 1971 SCR Power Control Fudamentals can control full wave loads...
Despite being from a 1969 publication, the transistors used have current equivalents such as BC548 and...