Lionel Type R transformer problem

Are you referring to this transformer?  I don't see a F terminal.

The only F terminal I see is on a TW below

The E-F post offers another 14 volts independent of track power. You can also use the F-A combination for 25 volts, but that’s not very useful as it’s far more voltage than any Lionel accessory needs. It’s really only useful for wiring two sets of lights in series, which you would rarely have any reason to do.

"I don't see a F terminal."

That's because the illustration you provided is of an RW, not an R, which is what Ken is referring to.

As Arthur notes, the R has no whistle, thus no "W" as in the RW and TW.  The R was featured in the the 1949 Lionel operating manual that came with sets, I think for several years after (and featured the famous 1949 Lionel showroom layout).

Thank you all for the education.  The Type R is one I have never seen.

Near the bottom of my web page, Phasing Transformers, there is a Postwar Lionel Transformer Circuits with Common Ground Chart that lists the Type R with E terminal.

@Ken Wing posted:

Tried it out, but the B post still gets hot.

Ken is it possible the other end of the wire from the B post has a loose connection at the circuit breaker OR is the wire pinched making contact with something else?

Sorry for the delay in replying. Had to learn how to get my meter to measure very low resistances, and also had a bunch of other things get in front of this. I measured 1 ohm from the B binding post to the metal strap at the other end of that wire connected to the contact for the circuit breaker. There is no loose connection. The wire does not appear to touch anything else and the insulation looks good.

Scratching my head.

Most likely there is corrosion built up underneath the eyelet that holds the binding post to the solder lug. Completely remove the eyelet and replace with a screw and nut.

Thank you Chuck Sartor! That did the trick. I ran it for over 10 minutes and the post wasn't even warm to the touch. And it only required an 8-32 screw and nut I had on hand. I had thought the problem was that rivet connection, but my two prior "solutions" didn't work. Another happy ending on the OGR forum.