You know what a transformer does, but what does the name by itself convey?
This knob here controls a condenser, and this one a transformer.
And all the while the humming of the transformer as the force field built up.
The former is called "step-up" while the latter is a "step-down" transformer.
It is an induced current produced by a transformer placed near the house.
The secondary of this transformer is connected to the antenn (A) and the earth (E).
This experiment illustrates the construction and action of a transformer.
These last pieces are to form the core and part of the end of the transformer.
A box should now be made from sheet iron to hold the transformer.
This transformer consists of two coils of wire, one surrounding the other.