Telegraph sounders
- Level
- Commodity
- Parent
- 43222700
- Below
- 0
- Links · KBLI
- 7
Definition
UNSPSC 43222703A component of a telegraph system that could recognize the different sounds made by the register as dots and dashes. This device used an electromagnet to pull on a piece of iron and make a clicking sound. When the electromagnet pulled on the iron, it made a more solid and heavy sounding click and when it released the iron, it made a thinner and lighter sounding click. Operators learned to discriminate between these two sounds and to use this ability to tell whether they were hearing a dot or a dash.
Same parent
Under 43222700 · 4Activities that produce or sell this
KBLI · 7Inherited from family 43220000.
Warning
The links were generated with a large language model (Gemini 3.5 Flash), matching UNSPSC at the family level to KBLI at the kelompok level. Some of them maybe are wrong, so check any link you intend to rely on.