Russia in the Microphone Age: A History of Soviet Radio, 1919-1970 (Oxford Studies in Modern European History): Lovell, Stephen: 9780198725268: Amazon.com: Books
File:Vintage Astatic Microphone, Model D-104, Made In USA, Circa 1970s (14764857459).jpg - Wikimedia Commons
VINTAGE) 70's SONY C-500R Condenser Microphones 1970s Lots of 2 Tested JAPAN | eBay
The dream team. Three #70s vintage #shure mics. Many people say that they prefer the sound of the USA models. They're get… | Vintage microphone, Vintage, Dream team
Mélodium 76A 1960's / 70's | Martin Mitchell's Microphones