I was examining 1510 for signals from WWSM on October 17. I didn't hear the Pennsylvania station, but at 2238z a Christian station surfaced with a clear “… 1510 AM WWBC and 102.7 …” identification. Today I received a very nice email from Ray Kassis, President.
WWBC is a daytimer, and Ray writes: "WWBC transmitts with 50 KW daytime and 25 KW two hours before local sunset. I believe you heard the station running 25 KW".
The station was heard from the listening post at Kalvøya, Smøla. Thanks for a most welcome verification, Ray! And thanks to Arild Skalmeraas for crucial information.