This shield circuit for lamps and other charges was found in a Popular Electronics from the 90's. The MOSFET admits equivalent according to the charging current.
This power supply was originally created for the CB16760E (Loudness System) but can be used in any...
Found in 1980s Electronic Engineering, this circuit uses common phototransistors as sensors. The...
This simple, unregulated power supply with an approximate 6 V output voltage can supply currents up to...