04-10-2014, 11:07 AM
Hi, welcome to the Phorum!
Exact resistances of the rf/if coils aren't important, as long as they aren't open. Your range of 2-8 sounds fine.
The field coil should measure 1140 ohms, the primary of the output transformer should be 400 ohms, and the voice coil .9 ohm. If any of those are substantially off or open, the radio isn't going to work. The speaker can be replaced with a modern one, and output transformer, and a resistor close to 1140 ohms at 20-25 watts or so. Hum may be increased without the field coil acting as a choke.
Good luck!
Will
Exact resistances of the rf/if coils aren't important, as long as they aren't open. Your range of 2-8 sounds fine.
The field coil should measure 1140 ohms, the primary of the output transformer should be 400 ohms, and the voice coil .9 ohm. If any of those are substantially off or open, the radio isn't going to work. The speaker can be replaced with a modern one, and output transformer, and a resistor close to 1140 ohms at 20-25 watts or so. Hum may be increased without the field coil acting as a choke.
Good luck!
Will
