Radio set DeForest Crosley 405D (Canada)
We are talking about an approx 8" unit with 2100 ohms field coil.
Seems that this resistance is less common than say a 1200 or 1500 ohm unit.
DeForest Crosley_405d_Schematic.jpg [ 42.49 KiB | Viewed 455 times ]
The field coil is actualy in the B+ return in order for a bias to be generated for the grid of the output tube. The divider is R6/R7 accross the field coil.
What I propose is to use a field coil with coil of say 1500 ohms and make up the difference with a 600 ohms power resistor and connect the bias divider across the two, coil and resistor that is. Does anyone see aproblem with this solution?