[DaleHCook]

The schematic I have says the value of this resistor is 200 ohms.  The parts list says it is 500 ohms.  The one in my radio measures at 400 ohms.  Is there a known correct value for this part?  What is the wattage rating for this item?

You need to look at all of the service information, and look at it closely. The schematic in the first 1928-1936 Philco Yearbook, p. 53, has "Note: Resistor (21) is 500 ohms in current production." Service Bulletin Changes 1:2, in an entry dated 15-Jun-1934, shows that in Run 5, Part 21 was changed to 400 ohms, as well as showing other changes in Runs 6, 8, 9, 15, and 16. Service Bulletin Changes 2:2 shows additional changes in Run 15.

The 1936 Philco Parts Catalog, p. 9, shows that the 500 ohm resistor (Part 6977) and the 400 ohm resistor (Part 33-3016) are both flexible wirewound resistors rated at 1/2 watt.