I think you would be fine with a new 8 ohm speaker. The new speakers are of the permanent magnet type so you don't need to connect the 6 volt power supply to the speaker. You can probably find an appropriate speaker at this place. Antique Electronic Supply


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!