There is (are?) a bunch of schematics on this very site in the resources section. I would think they were a private company that built a lot of radios for GM under contract. I took a quick gander, and it appears that most of their stuff was built in the middle thirties.
Lewis
Hi Lewis, I see they made radios for GM , but this is a console , I thought Delco had a different division in Indiana that made Home units? unless United made up the slack of the other division when they had too?
E.
When I ran through the schematics, I saw some AC models, so I assume there were some consoles in there. In fact, one of the radios is on about a jillion pages, it would seem the thing runs on AC and has a bunch of tubes. If I can find it again, I will post it for you. It also looks like GM might have bought them in the fourties.
Lewis
If the 1103 shown in the resources at this site ain't a home radio, then it used a loooooooong extention cord to play in a car. Can't tell if it is a console or what, but it runs on AC. By the way, change the cap from the power switch to chassis ground. If that thing is shorted, you could have a hot chassis. Small price for a lot of safety.
Lewis
Hi Elton; In my radio troubleshooters handbook under "Radio Manufacturers & Trade Names" it says:
UNITED MOTORS (Buick", "B.O.P.", "Chevrolet","Delco","Oldsmobile","Pontiac"), obtain parts from UNITED MOTORS SERVICE, 3044 La Salle St., Chicago, Ill.
Andy