04-27-2024, 01:25 AM
The blue label is at the filament of the rectifier which is common to the field coil. Though the wire itself may be another color as it is routed to the speaker. At this point it would seem blue would be consistent with an identical circuit connection to the "hi" B+...
Chas
Chas
Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”