too much power to faceplate?

I have a 1959 zenith console radio/turntable. It has 3 separate chassis, one for the amplifier one for the tuner and one for the turntable. I replaced all the electrolytics and paper capacitor with new ones and checked all the pieces against a schematic I have for it. It turns on and plays the radio and records just fine. The problem is, there is too much power running through the chassis and you get a light shock if I touch the record player arm or metal faceplate behind the dials. The chassis is used as ground for the radio and the faceplate is part of the chassis. The unit has a large transformer on the tuner chassis and two transformers for the amp board.

1. Is it common for units to use the faceplate where people put their hands as a ground?

2. what could be the reason for the power problem? the transformers?

Any advice is appreciated, thanks!