Protection of imported telephone sets. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Telephony
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The operating voltage of Korean telephones is 48 V, and the voltage of our telephone lines is 60 Volts.
It turns out that the imported phone does not fit with our line. The proposed device will help those who want to connect an imported device to a telephone line.
Author: S. Sych, Brest region Kobrin district, Orekhovsky settlement, Lenin street; Publication: N. Bolshakov, rf.atnn.ru
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