Rigol programmable linear dc power supply dp800 series rigol dp821 the rigol dp821 is a programmable linear dc power supply with 2 outputs and a power output up to 140wthis variable output bench dc power supply has been designed with an intuitive user interface which includes an lcd display channel setting parameter input menu softkey display switching advanced function area and output terminal as well as various communication interfaces which can fulfil versatile test requirementsap