1 Gang Wallplate Clipsal Style FTA PAL TV Antenna - 5 PACK - Cable Pro
connectors - Help in identifying a mystery wall socket - Home Improvement Stack Exchange
RCA Outdoor Matching Transformer - Black Brass F-Connector - Converts Flat Antenna Leads to Coaxial Cable - Weather-Resistant - 75-Ohm to 300-Ohm Signal Upgrade in the Video Connectors department at Lowes.com
What is this outlet for? I'm in the USA in a home that was built in the 1970's. : r/whatisthisthing