AKG - Frank Sinatra used a custom-made gold-plated AKG C535 microphone in his live performances. Here's a closer look at the model. | Facebook
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Music History Monday: Microphones | Robert Greenberg | Speaker, Composer, Author, Professor, Historian
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Michael Huppe: It's Time to Honor Frank Sinatra's 1988 Call for Radio Fairness | Billboard – Billboard
![Publicity photo of Frank Sinatra in 1942 with a CBS microphone, issued to promote an early iteration of The Frank Sinatra Show on CBS Radio Stock Photo - Alamy Publicity photo of Frank Sinatra in 1942 with a CBS microphone, issued to promote an early iteration of The Frank Sinatra Show on CBS Radio Stock Photo - Alamy](https://c8.alamy.com/comp/2HP74XM/publicity-photo-of-frank-sinatra-in-1942-with-a-cbs-microphone-issued-to-promote-an-early-iteration-of-the-frank-sinatra-show-on-cbs-radio-2HP74XM.jpg)