This 1960s Japanese receiver uses 6 germanium transistors, being powered by a 6 V voltage obtained from large batteries. The circuit is for the medium wave range of the superheterodyne type.
This CMOS Flasher was found in a Popular Electronics from 1978. It can still be easily assembled, as all...
In the figure we have the suggestion of coupling an audio oscillator to monitor the CW...
This double bench source has a fixed voltage output and an adjustable voltage output with current up...