Linear Variable Differential Transformer (LVDT) Circuits
Filament transformer adjusts line voltage: 08/21/03 EDN-Design
Ideas / The problem: I couldn't use my Heathkit oscilloscope in a house
I lived in during the 1960s because my lab was too far from the
power-line input to the house, and the line drop through the house was
substantial. Depending on the time of day, the screen would shrink to
perhaps half the normal display size....