Suggested by Texas Instruments in 1968 documentation, this circuit uses components from the era. Modern diacs and SCRs can be employed.
In the figure we have the way to use a common multimeter as a field strength meter. RF shock...
This is the name given to the 1969 Electronics World voltage inverter. It is a series converter...
The circuit shown is a Step-Down converter that can provide a 5 A output with 4 to 18 V inputs. The...