replacement speaker

so-tingly wrote:

Dale H. Cook
Sorry. It's a Philco 41-226C
I've tried looking for the link to the ARL staff but no luck.

Just look for admin or Moderator in postings on the form. We show our rank below our icon (Picture)as Admin or Moderator.

Just send a P.M. its a button at the bottom of each post (it shows a person icon with the word MP)
to: (ve1arm),or (FrankB), or (Cliff Jones)

We have our Admin forum but only we have access to that area and isn't shown to Members. (So that's private.)

Sorry Dale.
Something I have not figured out on any of the forums.

FrankB wrote:

BTW- Who is the ARL?

Antique Radio Lab.

Can you help the OP with posting images? I never have a problem, but I've been posting images on boards for more than 20 years. He says he resized them but somehow I think he missed a step.

BTW- Who is the ARL?
I have heard of the ARRL, but they ate pretty much all ham related stuff, not antique radios.

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It is not the "C" model, but should do the trick.
 Nostalgia Air is a great resource.

PM= Permanent magnet

HTH

Also :

Ron Ramirez= https://ronsradios.com/about/

[You must be registered and logged in to see this link.] Great philco site.

Did you know the first 2 numbers are the year of mfgr?
41= 1941

AND  https://philcoradio.com/library/download/service%20info/yearbooks/1941/split/Part39-Philco%201941%20RMS%20Year%20Book.pdf

so-tingly wrote:

I've tried looking for the link to the ARL staff but no luck.

FrankB - can you help him?

Have you messaged anyone on the ARL staff about this problem?

Can you at least tell us the model of your set?

Please post the make and model of the radio - at the moment we are flying blind.

You can replace the field coil with a choke of the correct resistance and use a PM speaker.
 I have done that several times with success.

 If you so choose to use a resistor, it goes in place of the field coil. You will need to use the correct ohmage and calculate the wattage of the resistor, then use a PM speaker also--but you may end up with hum from using a resistor instead of a choke. Always better to use a higher wattage resistor than you think you need also. Be sure to place it where it is well ventilated.

so-tingly wrote:

If I'm correct the coil is acting like a magnet.

That is an electrodynamic speaker, which was common in the '30s and '40s before more powerful permanent magnets were introduced. The large coil is the field coil, which produces the magnetic field in which the voice coil moves. In most sets the resistance and reactance of the field coil are major filtering components in the high voltage power supply.

so-tingly wrote:

Can I replace it with one with a permanent magnet from another old radio?

Is the field coil open? If so you might be better off if you can repair or rewind it.

so-tingly wrote:

If I recallI've tried multiple times to upload the schematic and pictures of the speakers but the forum says it's way to big.

You need to resize the image with an image editor. As a general rule you should try to keep the width of an image to 1,000 pixels or less.

Hello everyone
I think I've done this before but can't quite recall.
I have a speaker with a coil right behind the cone where a magnet should be. If I'm correct the coil is acting like a magnet.
Can I replace it with one with a permanent magnet from another old radio?
If I recall I had to place a wire wound resistor to make up for the coil and I forgot where I had to place it. 
I've tried multiple times to upload the schematic and pictures of the speakers but the forum says it's way to big.
My apologies. Also, if anyone can tell me how to add images here that would be great

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