This machine pronounces, in a monotone voice, a string of numbers used for one-way shortwave radio communication by intelligence agencies with their agents in enemy countries. This machine belongs to a German collector who has a vast collection of various spy-gadgets. There were many machines of this particular model produced in East-Germany for usage within the DDR itself or other communist bloc nations, like the Soviet Union or Cuba.
In Germany (east or west) this machine was referred to as a "sprach/morse generator", which is German for "speech/morse generator". In the previous videos I've shown you the speech-side of the generator. In this video we shall go into the usage of morse with this machine.