From HiFi Trade News 1983, the USA Audio Market was always discounting back then, everyone wanted a "deal."
From 1976, my favorite tape! I'm surprised at how early it was released, I thought it was closer to the 80's. Thanks AB388.
Over on archive.org, download your copy today! From 1971 https://archive.org/details/bitsavers_basfRitterswers1971_8779303/mode/2up?q=radio+recorder
An ad for Digalog from 1992, I used to get a ton of tapes from the BMG Tape Club and later versions had teh Digalog Sticker on them.