This info can be found in detal in Alan Douglss's work, "Radio manufacturers of the 1920's which covers the topic in detal. Your Majestic 90 came out in 1929, with the 90B (integral power supply) coming out in 1930. It was manufactured by the Grigsby-Grunow Co. of Chicago.
:Hi everyone, when I restore a radio I like to find a old advertising pic and a little general info about the radio I.E. manufacture date, original price, info about the company, etc, then mount it in a small frame 5x7 and display it on the radio... does anyone have any info on this model, or know of a book with any of the above info?
:Thanks
:E.