12-27-2007, 12:16 AM
The important things are:
* cone diameter;
* cone depth;
* voice coil diameter.
If the speaker is completely torn apart and needs a voice coil and spider, you will need the proper size external spider, also.
In addition, the original voice coil had an impedance of 3.5 ohms. Most voice coils you will find will probably be 8 ohms; which means you will have to replace the audio output transformer in the radio with a unit that matches the output to your speaker's new voice coil.
If the depth of the cone is incorrect, the speaker will not work correctly (even if you can get it all glued together).
Finally, yes, you can use any cone as long as the depth and diameter are correct. It is highly unlikely that one will stumble across very many NOS (new-old-stock) Philco speaker parts.
* cone diameter;
* cone depth;
* voice coil diameter.
If the speaker is completely torn apart and needs a voice coil and spider, you will need the proper size external spider, also.
In addition, the original voice coil had an impedance of 3.5 ohms. Most voice coils you will find will probably be 8 ohms; which means you will have to replace the audio output transformer in the radio with a unit that matches the output to your speaker's new voice coil.
If the depth of the cone is incorrect, the speaker will not work correctly (even if you can get it all glued together).
Finally, yes, you can use any cone as long as the depth and diameter are correct. It is highly unlikely that one will stumble across very many NOS (new-old-stock) Philco speaker parts.
--
Ron Ramirez
Ferdinand IN
