There are quite a few pages on the SX42 in Rider Volume #17. Contact your local library. They can usually get this information for you. Since the receiver is very complex the writing is small, you should get a copy directly from the Rider manual.
Norm
: I am currently in the process of restoring a Hallicrafters
: sx-42 and i can use all the help i can get. anything will be
: greatly appreciated.
: thanks, greg