Aim tti plh250 p 0 250v 0 0 375a single power supply aim tti plh250 p p the aim tti plh250 p retains the ultra compact format high power density and smart analog controls of the plh250 p but offers voltages up to 250v to cover applications beyond the capabilities of standard bench psus and into areas such as magnetics p p as technology has changed many products have moved from analog controls to digital ones although digital controls suit many instruments they do not n