The solid state Frequency Shift Converter Type TSW10 has been designed for the reception of radio transmissions
using frequency shift keying in the range of 10 Hz to 1000 Hz. The converter accepts audio frequency signals
from a radio receiver. These signals are converted into single or double current DC pulses for the direct
operation of the selector magnets in teleprinters from an electronic output circuit without the use of relays
or need of an external DC supply.
Manufactured by AT&E, Bridgenorth.
Converter Frequency Shift Type TSW10-C (Photograph Number 0026)