Static ringing generator (AC, 70 Volts, 17 Hz) for tactical manual telephone switchboard, such as MRK-22.
Used by the IDF during the War of Attrition (1967-1970), the Yom Kippur War (1973) and the Peace for Galilee War (1982).
Powered by DC 24 Volts or AC 230 Volts.
Manufactured by Keren Electronics, Israel.
