This is an old shaving device from my grandfather. It is quite noisy, possibly because it uses a motor with carbon brushes.
Markings on the blue part specify a current draw of 6W @ 110-130V. The text below that is unclear to me, perhaps it means that there is a AC to DC conversion and it is a DC motor with a 20 degree phase shift (or something)?
It is connected to mains through this peculiar looking ungrounded wall plug. Inside is a single component that measures as 2kO resistor. After a few minutes of shaving the plug becomes quite warm which is probably also the reason why there are vents located at the sides.
When the switch is set to 180/220 the live wire is put in series with the resistor, otherwise the resistor is unused.
An side look at the main part.
A top look of the main part. Right next to the main rotating shaft are two holes where the carbon brushes are located. They are mostly worn down after being used for many years.
What are 5 dirty-looking yellowish components? I dissasembled them and they are just wires connecting all parts while isolating others, like this (black is not connected to grey):
I measured the voltage where the power lines enter the device (before the coils) at 140 volts. Apparently this is the effect of the large resistor in the power plug.
The coils: I have two of these devices now and when I measure the resistance of the coils it is around 150 ohms on one and 105 ohms on the other.
The resistor in the power plug measures 1.8 kohm on the newer device.
TODO: What current does the device draw?
TODO; What does the schematic look like?
TODO: Does the AC-DC and 110/130 - 180/220 mean the motor can be run on 110V or 180V DC?