Anyone know what these first two connectors are called? Found this old looking board on a top shelf in a theatre I'm working at. : r/techtheatre

Lincoln Southeast High School 2010 Yearbook by Lincoln Public Schools Library Media Department - Issuu

Completion : r/techtheatre

The Techi Bible: The Old Testament

Old Circuit Boards; just junk or is there value there? : r/AskElectronics

What is this thing? : r/techtheatre

The Techi Bible: The Old Testament

Boxoffice-April.02.1949

What type of connector is this? : r/AskElectronics

Liz & Alex in Italy — Tech Theatre on a Ship

Glossary of Technical Theatre Terms - Stage Management

Glossary of Technical Theatre Terms - Stage Management