Need to replace a speaker in a 1933 radio with a voice coil and a transformer. I read something a while back about adding a 10 ohm 1k resistor, now I can't find the text I was reading.

Did you mean replacing a speaker that had a Field coil, hum bucking coil, and audio output transformer ?

:Did you mean replacing a speaker that had a Field coil, hum bucking coil, and audio output transformer ?
:Yes and with a modern day speaker there was something I read about adding a 10w 1k ohm and I can't remember who on this forums suggested it.
Thanks, KY
:

Okay then. You would add the resistor to where the Field Coil used to connect. Check with the schematic for the actual resistance of the old field coil. Use your original audio output transformer. If it did have a hum bucking coil, that will be done away with also. You can see where the primary of the output transformer connects to the grid and plate of the output tube.

:Okay then. You would add the resistor to where the Field Coil used to connect. Check with the schematic for the actual resistance of the old field coil. Use your original audio output transformer. If it did have a hum bucking coil, that will be done away with also. You can see where the primary of the output transformer connects to the grid and plate of the output tube.
:Thanks Warren, That was what I thought I was going to do. I just need your reinforcement. I think I got this from a book call the elements of radio servicing. GREAT BOOK,
Thanks, KY

Make sure that the new speaker's voice coil impedance matches that of the original. The original's impedance may be stamped on the inside of the coil.

It would be better, if at all possible, to use the original speaker.

T.