I'm not sure Sam's was around for 1941. In any event I have not been able to find one.
My thoughts are that since the radio failed the same way it did initially, the cleaner is less likely to be the culprit.
I found another link with 41-842 picture and schematic. No voltages but a parts list
http://www.geocities.com/jaschotter/philco41-843.html
(I'm uploading a bunch of files and it's going slow. So I'm trying to keep busy ;-))