Help understanding a 30 year old schematic for a contact aligner
The rectifier is the diamond-shaped component in the upper left with "RECT." in the center. This is a somewhat uncommon symbol for a bridge rectifier. The top and bottom corners, marked y, are the input, and the other two corners marked + and - are the output.



The transformer is just above and to the left of that:



Each set of squiggly lines represents one separate winding of the transformer. The ones on the left side of the vertical lines (representing the core) are the primary windings, and the ones on the right are the secondaries.

Other notable visible components include:


Two fuses, marked F1 through F3. Looks like ~. F1 is on the power input, and the other two are attached to pins on connector P3.
One resistor, marked R1, across capacitor C3. (Probably used to bleed off charge when the device is powered off.)
Two diodes, marked D1 and D2, in the lower left (look like -|&lt;-).
Two relays, marked R1 and R2 (!), in boxes at the bottom. The markings inside the box indicate how the contacts are configured.