A staple for many years in electronics magazines was the ad for the Progressive Edu-Kit, a kit which could be re-built in 15 different configurations. A review of the kit and copy of the manual can be found at this link.

The full-page ad usually appeared on the back cover of the magazine, and as far as I knew, this was the only product ever sold by the company.  But from the ad shown above from the October 1948 issue of Radio Electronics, it appears that the company started out with a more diverse product line.

In addition to the products shown here, the ad from the Progressive Electronics Co., 497 Union Ave., Brooklyn, NY, included a bike radio and car radio.  (The address is now home to the Beer Boutique.)

Shown here is the ad for a combination car radio/battery charger/electric shaver powerizer. In addition to being a 6-tube radio, the set included a battery charger for the car battery. So on cold winter nights, you could plug the car radio into a 117 volt outlet, it would charge the battery all night, and it would “make winter starting sure.”

And if you were running late the next morning, the radio also included an outlet to plug in your electric shaver while you drove to work.