AC/DC Power Supply Controller for Ripple Tank, Variable DC and Fixed AC Pack Size_7 adjustable via motor voltage to

adjustable via motor voltage to mimic temperature and float weight to mimic pressure

and Lucite dielectrics for studies of capacitance

Hand-painted 4-part human brain model separates into cortical hemispheres and brain-stem regions for lobed-anatomy teaching at introductory biology levels

and acetate strips for hollow-conductor work

and permittivity

AC/DC Power Supply Controller for Ripple Tank, Variable DC and Fixed AC Pack Size_7 adjustable via motor voltage toTwo variable 0 to 6V DC outputs paired with two fixed 6V 10W and 12V 20W AC outputs on this power supply controller, sized for ripple tank and bulb driven physics demonstrations.