Hi all Just recently picked this radio up , it is complete the only bad part is the speaker, it is still electricly sound , but it looks as though someone painted a varnish or coating of some type on it and it is stiff as a board, the cone does not move and if you attempt to move it it starts to tear, it sounds like a cheap crystal headphone, I do have a nice 10" cone from another speaker with a bad field coil , my thought was to do a cone transplant as the cone from the radio will unbolt from the field coil so they can be separated my though was to bolt the basket and cone assembly of the new speaker to the radio, only problem is the replacement speaker's field coil is mounted to the back of the basket ( I think welded on?) is there a way to remove this with out destroying the basket and cone? anyone ever attempt this ?
Thanks
Elton

:Hi all Just recently picked this radio up , it is complete the only bad part is the speaker, it is still electricly sound , but it looks as though someone painted a varnish or coating of some type on it and it is stiff as a board, the cone does not move and if you attempt to move it it starts to tear, it sounds like a cheap crystal headphone, I do have a nice 10" cone from another speaker with a bad field coil , my thought was to do a cone transplant as the cone from the radio will unbolt from the field coil so they can be separated my though was to bolt the basket and cone assembly of the new speaker to the radio, only problem is the replacement speaker's field coil is mounted to the back of the basket ( I think welded on?) is there a way to remove this with out destroying the basket and cone? anyone ever attempt this ?
:Thanks
:Elton
:

My recommendation: don't try it. Just send the speaker in for re-coning.
Johnnysan-

I am wondering if you could possibly soak the cone in a solvent such as acetone, that will not damage the paper, but might remove the coating, whatever it may be. The coil must not be soaked in acetone, or else the enamel will be removed. Once the coating is removed from the cone, however, it can be revitalized with a mixture of neatsfoot oil and dish detergent at a ratio of about 10:1 painted onto the cone. With time this will even soften the paper fibers.

...Otherwise reconing is necessary. If you could find a new cone of the same dimensions, you could attach it to the original voice coil.

By the way, did you ever get the Majestic running properly?

T.

:I am wondering if you could possibly soak the cone in a solvent such as acetone, that will not damage the paper, but might remove the coating, whatever it may be. The coil must not be soaked in acetone, or else the enamel will be removed. Once the coating is removed from the cone, however, it can be revitalized with a mixture of neatsfoot oil and dish detergent at a ratio of about 10:1 painted onto the cone. With time this will even soften the paper fibers.
:
:...Otherwise reconing is necessary. If you could find a new cone of the same dimensions, you could attach it to the original voice coil.
:
:By the way, did you ever get the Majestic running properly?
:
:T.
:
Yes I did , it turns out I found a loose ground conection in the power supply causing the bad hum. and it now plays good , still have to figure out why the dial will not align to 1400 , what is neatsfoot oil?
Thanks
E.

::I am wondering if you could possibly soak the cone in a solvent such as acetone, that will not damage the paper, but might remove the coating, whatever it may be. The coil must not be soaked in acetone, or else the enamel will be removed. Once the coating is removed from the cone, however, it can be revitalized with a mixture of neatsfoot oil and dish detergent at a ratio of about 10:1 painted onto the cone. With time this will even soften the paper fibers.
::
::...Otherwise reconing is necessary. If you could find a new cone of the same dimensions, you could attach it to the original voice coil.
::
::By the way, did you ever get the Majestic running properly?
::
::T.
::
:Yes I did , it turns out I found a loose ground conection in the power supply causing the bad hum. and it now plays good , still have to figure out why the dial will not align to 1400 , what is neatsfoot oil?
:Thanks
:E.
:

I tink it is Neetsfoot oil, it's a liquid used for treating leather.
Lewis

:::I am wondering if you could possibly soak the cone in a solvent such as acetone, that will not damage the paper, but might remove the coating, whatever it may be. The coil must not be soaked in acetone, or else the enamel will be removed. Once the coating is removed from the cone, however, it can be revitalized with a mixture of neatsfoot oil and dish detergent at a ratio of about 10:1 painted onto the cone. With time this will even soften the paper fibers.
:::
:::...Otherwise reconing is necessary. If you could find a new cone of the same dimensions, you could attach it to the original voice coil.
:::
:::By the way, did you ever get the Majestic running properly?
:::
:::T.
:::
::Yes I did , it turns out I found a loose ground conection in the power supply causing the bad hum. and it now plays good , still have to figure out why the dial will not align to 1400 , what is neatsfoot oil?
::Thanks
::E.
::
:
:
:
:
:I tink it is Neetsfoot oil, it's a liquid used for treating leather.
:Lewis
:
Re-coning Your speaker should noy be too difficult, I have done several philco speakers that the cone spider has a screw in the center and the cone and voice coil come out as an assembly, all that is neede is to find a suitable cone size and I have seen some on ebay, mine were 7 3/4" and 10 3/4' .

::::I am wondering if you could possibly soak the cone in a solvent such as acetone, that will not damage the paper, but might remove the coating, whatever it may be. The coil must not be soaked in acetone, or else the enamel will be removed. Once the coating is removed from the cone, however, it can be revitalized with a mixture of neatsfoot oil and dish detergent at a ratio of about 10:1 painted onto the cone. With time this will even soften the paper fibers.
::::
::::...Otherwise reconing is necessary. If you could find a new cone of the same dimensions, you could attach it to the original voice coil.
::::
::::By the way, did you ever get the Majestic running properly?
::::
::::T.
::::
:::Yes I did , it turns out I found a loose ground conection in the power supply causing the bad hum. and it now plays good , still have to figure out why the dial will not align to 1400 , what is neatsfoot oil?
:::Thanks
:::E.
:::
::
::
::
::
::I tink it is Neetsfoot oil, it's a liquid used for treating leather.
::Lewis
::
:Re-coning Your speaker should noy be too difficult, I have done several philco speakers that the cone spider has a screw in the center and the cone and voice coil come out as an assembly, all that is neede is to find a suitable cone size and I have seen some on ebay, mine were 7 3/4" and 10 3/4' .
:
http://cgi.ebay.ca/Pair-10-Paper-Cones-Speaker-Parts-CP4216A-/360298987252?pt=LH_DefaultDomain_0&hash=item53e37e3ef4

However it is spelled, you can buy it at sporting goods stores.

:::I am wondering if you could possibly soak the cone in a solvent such as acetone, that will not damage the paper, but might remove the coating, whatever it may be. The coil must not be soaked in acetone, or else the enamel will be removed. Once the coating is removed from the cone, however, it can be revitalized with a mixture of neatsfoot oil and dish detergent at a ratio of about 10:1 painted onto the cone. With time this will even soften the paper fibers.
:::
:::...Otherwise reconing is necessary. If you could find a new cone of the same dimensions, you could attach it to the original voice coil.
:::
:::By the way, did you ever get the Majestic running properly?
:::
:::T.
:::
::Yes I did , it turns out I found a loose ground conection in the power supply causing the bad hum. and it now plays good , still have to figure out why the dial will not align to 1400 , what is neatsfoot oil?
::Thanks
::E.
::
:
:
:
:
:I tink it is Neetsfoot oil, it's a liquid used for treating leather.
:Lewis
:

:However it is spelled, you can buy it at sporting goods stores.
:Well this speaker it almost looks like someone painted on a thick varnish, you can almost see a reflection in it, and like I say is stiff with no movement at all, the cone and VC will come out easily from the field coil actually the whole basket will unbolt from the field coil and I have a few 10" speakers that are junk except they have the pole piece welded? to the basket I was thinking about trying to chisel it off?
E.
:
::::I am wondering if you could possibly soak the cone in a solvent such as acetone, that will not damage the paper, but might remove the coating, whatever it may be. The coil must not be soaked in acetone, or else the enamel will be removed. Once the coating is removed from the cone, however, it can be revitalized with a mixture of neatsfoot oil and dish detergent at a ratio of about 10:1 painted onto the cone. With time this will even soften the paper fibers.
::::
::::...Otherwise reconing is necessary. If you could find a new cone of the same dimensions, you could attach it to the original voice coil.
::::
::::By the way, did you ever get the Majestic running properly?
::::
::::T.
::::
:::Yes I did , it turns out I found a loose ground conection in the power supply causing the bad hum. and it now plays good , still have to figure out why the dial will not align to 1400 , what is neatsfoot oil?
:::Thanks
:::E.
:::
::
::
::
::
::I tink it is Neetsfoot oil, it's a liquid used for treating leather.
::Lewis
::
:
:

::However it is spelled, you can buy it at sporting goods stores.
::Well this speaker it almost looks like someone painted on a thick varnish, you can almost see a reflection in it, and like I say is stiff with no movement at all, the cone and VC will come out easily from the field coil actually the whole basket will unbolt from the field coil and I have a few 10" speakers that are junk except they have the pole piece welded? to the basket I was thinking about trying to chisel it off?
:E.
::
I see what Youre saying, remove the magnet and install the field coil assy, voice coil would have to be the same diameter and the basket will more than likely bend from the force of removing the magnet.If it is a junk speaker mabe worth a try, I know from the past just tryung o save the magnet basket was destroyed in the process.for what its worth the replacement cones are pretty cheap and much easier to do, the link I left gives You the size of the cone dimentions, depth will be important here the most, diameter can alway be trimmed a bit same as the coil opening if too small, bigger opening all You do is save part of the old cone say 1/2 to mate to the new cone.
:::::I am wondering if you could possibly soak the cone in a solvent such as acetone, that will not damage the paper, but might remove the coating, whatever it may be. The coil must not be soaked in acetone, or else the enamel will be removed. Once the coating is removed from the cone, however, it can be revitalized with a mixture of neatsfoot oil and dish detergent at a ratio of about 10:1 painted onto the cone. With time this will even soften the paper fibers.
:::::
:::::...Otherwise reconing is necessary. If you could find a new cone of the same dimensions, you could attach it to the original voice coil.
:::::
:::::By the way, did you ever get the Majestic running properly?
:::::
:::::T.
:::::
::::Yes I did , it turns out I found a loose ground conection in the power supply causing the bad hum. and it now plays good , still have to figure out why the dial will not align to 1400 , what is neatsfoot oil?
::::Thanks
::::E.
::::
:::
:::
:::
:::
:::I tink it is Neetsfoot oil, it's a liquid used for treating leather.
:::Lewis
:::
::
::
:
:

Reconing is likely easier than trying to piece together two speakers, and you will like the results of the new cone. Be sure that the new cone has the same depth as the old cone, or else you'll have to shim the cone or add a voice coil extension, depending on which direction you need to go. The voice coil needs to lie within the pole pieces, however.

If the old cone were pristine, I would try to salvage it, but if it doesn't look salvagable, or if it's in bad condition, it's better to recone.

T.

Incidentally, depending on the cone style, you may be able to cut off the edge and replace with a foam rubber surround, or make one from thin suede or thin rubberized cloth. The only part that needs to flex is the edge. The cone itself is best rigid.

:Reconing is likely easier than trying to piece together two speakers, and you will like the results of the new cone. Be sure that the new cone has the same depth as the old cone, or else you'll have to shim the cone or add a voice coil extension, depending on which direction you need to go. The voice coil needs to lie within the pole pieces, however.
:
:If the old cone were pristine, I would try to salvage it, but if it doesn't look salvagable, or if it's in bad condition, it's better to recone.
:
:T.
:

:Incidentally, depending on the cone style, you may be able to cut off the edge and replace with a foam rubber surround, or make one from thin suede or thin rubberized cloth. The only part that needs to flex is the edge. The cone itself is best rigid.
:
::Reconing is likely easier than trying to piece together two speakers, and you will like the results of the new cone. Be sure that the new cone has the same depth as the old cone, or else you'll have to shim the cone or add a voice coil extension, depending on which direction you need to go. The voice coil needs to lie within the pole pieces, however.
::
::If the old cone were pristine, I would try to salvage it, but if it doesn't look salvagable, or if it's in bad condition, it's better to recone.
::
::T.
::
:
:
Those foam surronds are readily available and come in a multitude of sizes, would be extremely easy ti install.

::Incidentally, depending on the cone style, you may be able to cut off the edge and replace with a foam rubber surround, or make one from thin suede or thin rubberized cloth. The only part that needs to flex is the edge. The cone itself is best rigid.
::
:::Reconing is likely easier than trying to piece together two speakers, and you will like the results of the new cone. Be sure that the new cone has the same depth as the old cone, or else you'll have to shim the cone or add a voice coil extension, depending on which direction you need to go. The voice coil needs to lie within the pole pieces, however.
:::
:::If the old cone were pristine, I would try to salvage it, but if it doesn't look salvagable, or if it's in bad condition, it's better to recone.
:::
:::T.
:::
::
::
:Those foam surronds are readily available and come in a multitude of sizes, would be extremely easy ti install.
:
Thanks I have done the foam surrounds before on my old utahs and they worked great , but I think I will cut the old cone off leaving the vc intact and recone with a replacement cone from electonix as I tried some acetone to see if I could soften up what ever is on this and started to work but the paper started to rip , I think it is a thick coat of varnish? anyway a new cone is on the way
Thanks
E.

I've seen some pretty terrible cone repairs in my time. Sometimes I was able do undo enough of it to get it right. Agreed, foam surrounds are easy provided someone didn't play the thing until the voice coil was shorted or ruptured.

Incidently, direct sunlight will destroy surrounds, even through the grille cloth. Ever see a pair of speakers, one OK the other one surrounds reduced to powder? Well you can't move the sun. and you can't always move the position of the speakers, but now you know.

:::Incidentally, depending on the cone style, you may be able to cut off the edge and replace with a foam rubber surround, or make one from thin suede or thin rubberized cloth. The only part that needs to flex is the edge. The cone itself is best rigid.
:::
::::Reconing is likely easier than trying to piece together two speakers, and you will like the results of the new cone. Be sure that the new cone has the same depth as the old cone, or else you'll have to shim the cone or add a voice coil extension, depending on which direction you need to go. The voice coil needs to lie within the pole pieces, however.
::::
::::If the old cone were pristine, I would try to salvage it, but if it doesn't look salvagable, or if it's in bad condition, it's better to recone.
::::
::::T.
::::
:::
:::
::Those foam surronds are readily available and come in a multitude of sizes, would be extremely easy ti install.
::
:Thanks I have done the foam surrounds before on my old utahs and they worked great , but I think I will cut the old cone off leaving the vc intact and recone with a replacement cone from electonix as I tried some acetone to see if I could soften up what ever is on this and started to work but the paper started to rip , I think it is a thick coat of varnish? anyway a new cone is on the way
:Thanks
:E.
: