![AM/FM Radio's Multiplier Effect: How The Combined Impact Of Numerous Campaigns From One Retailer Generates Outsized Results | Westwood One AM/FM Radio's Multiplier Effect: How The Combined Impact Of Numerous Campaigns From One Retailer Generates Outsized Results | Westwood One](https://www.westwoodone.com/wp-content/uploads/2020/10/Take-action-at-retailer-store.png)
AM/FM Radio's Multiplier Effect: How The Combined Impact Of Numerous Campaigns From One Retailer Generates Outsized Results | Westwood One
![File:Vintage Advertising For The Audition 10 Transistor Radio In A Woolworth's Store Ad In The Pittsburgh Press Newspaper, October 14, 1965 (49386137762).jpg - Wikimedia Commons File:Vintage Advertising For The Audition 10 Transistor Radio In A Woolworth's Store Ad In The Pittsburgh Press Newspaper, October 14, 1965 (49386137762).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/3/34/Vintage_Advertising_For_The_Audition_10_Transistor_Radio_In_A_Woolworth%27s_Store_Ad_In_The_Pittsburgh_Press_Newspaper%2C_October_14%2C_1965_%2849386137762%29.jpg)
File:Vintage Advertising For The Audition 10 Transistor Radio In A Woolworth's Store Ad In The Pittsburgh Press Newspaper, October 14, 1965 (49386137762).jpg - Wikimedia Commons
![File:Vintage Advertising For The General Electric Model P-776A Transistor Radio In A Caldor Store Ad In The Bridgeport Connecticut Post Newspaper, June 25, 1959 (47308151432).jpg - Wikimedia Commons File:Vintage Advertising For The General Electric Model P-776A Transistor Radio In A Caldor Store Ad In The Bridgeport Connecticut Post Newspaper, June 25, 1959 (47308151432).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/a/a3/Vintage_Advertising_For_The_General_Electric_Model_P-776A_Transistor_Radio_In_A_Caldor_Store_Ad_In_The_Bridgeport_Connecticut_Post_Newspaper%2C_June_25%2C_1959_%2847308151432%29.jpg)