![File:Vintage Advertising For The Emerson Model 555 Transistor Radio In A Hess's Store Ad In The Allentown, Pennsylvania Morning Call Newspaper, December 11, 1958 (49121726353).jpg - Wikimedia Commons File:Vintage Advertising For The Emerson Model 555 Transistor Radio In A Hess's Store Ad In The Allentown, Pennsylvania Morning Call Newspaper, December 11, 1958 (49121726353).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/d/d0/Vintage_Advertising_For_The_Emerson_Model_555_Transistor_Radio_In_A_Hess%27s_Store_Ad_In_The_Allentown%2C_Pennsylvania_Morning_Call_Newspaper%2C_December_11%2C_1958_%2849121726353%29.jpg)
File:Vintage Advertising For The Emerson Model 555 Transistor Radio In A Hess's Store Ad In The Allentown, Pennsylvania Morning Call Newspaper, December 11, 1958 (49121726353).jpg - Wikimedia Commons
Circuitos de Radio - AM TRANSMITTER USING 555 This circuit can transmit AM radio wave in MW frequency of around 600 Kilo hertz.The Timer IC 555 is used a free running multi
![File:Vintage Emerson Model 555 5-Transistor Radio, "The All-American", Made in U.S.A., Circa 1959 (11695934585) (2).jpg - Wikimedia Commons File:Vintage Emerson Model 555 5-Transistor Radio, "The All-American", Made in U.S.A., Circa 1959 (11695934585) (2).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/3/3b/Vintage_Emerson_Model_555_5-Transistor_Radio%2C_%22The_All-American%22%2C_Made_in_U.S.A.%2C_Circa_1959_%2811695934585%29_%282%29.jpg)