[Texasrocker]

Also, just as a added note to what Ron suggested already, make sure all the tube-pins are clean & shiny especially the loctal types, ( if your set has a few). Loctal types are notorious for causing bad reception,no reception, or intermittent reception after all else has been properly done. Try gently "rocking" the tubes in their sockets, while your set is in operation. If it comes on loud & clear, bingo, you have found bad ( corroded)tube pin connections. If so, you can carefully scrape all the tarnish off all the tube-pins one at a time, carefully using a exacto pointed knife tip. Just make sure you dont accidentally cut yourself. You can also spray a small amt of WD40 in the sockets, while set is "unplugged" !!!, and help clean out the sockets pins-connections, by installing loctal base tubes, then carefully removing them,repeating several times, to acheive good tube pin-to -sockets contacts. Best of luck restoring your vintage Philco 40-201!!!