12-22-2008, 09:27 AM
Here's a puzzler - I bought a Philco 37-610 - its chassis has 6 tubes, including a 5Y3(not a 5Y4). There is no tube mounted on top of the transformer. I can't find a schematic anywhere for it. They almost all have either 5 tubes or they have a 5Y4 mounted on top of the transformer - I'm going crazy trying to find a schematic for it. Any help would be greatly appreciated. Thanks, Phil