[Ron Ramirez]

I don't know what service info you're using, Johnny, but I have the original Philco service manual for the 46-1209 and it shows the following info:

[Image: http://i326.photobucket.com/albums/k420/...7359c3.jpg]

As you can see, the schematic shows the 5-pin socket.

[Image: http://i326.photobucket.com/albums/k420/...6a22f8.jpg]

It appears Philco planned to offer an external antenna for this model, but perhaps those plans were later scrapped? Philco would not have spent the money on a socket unless they had planned to make use of it. You take whatever that socket cost, multiply it by tens of thousands of sets...it adds up.

You should also know that this was Philco's first radio lineup since 1942. Philco had planned to offer twice as many sets as they ended up offering, and a number of proposed models never made it to production.

http://www.philcoradio.com/gallery/1946b.htm

So, things were in flux as Philco changed over from wartime production back to civilian production of home and auto radios. They delayed release of TV sets until the 1948 season, long enough for RCA to get a head start on TV, which would be one of many missteps Philco made over the next several years...which ultimately resulted in Philco's sale to Ford in 1961.