Armored vehicles intercommunications amplifier for VRC-12 VHF radio.
Used by the US military from 1963 until early 1990s, designated AM-1780/VRC.
Used by the IDF during the War of attrition (1967-1970), the Yom Kippur War (1973), the Peace for Galilee War (1982), the Security Zone Conflict (1982-2000) and the Second Lebanon War (2006).
