11-29-2017, 01:23 PM
OK, on to the speaker.
The poor cone - which had been patched up in our early 2000's work had now deteriorated to a very poor state:
I found some suitable card on-line, and worked out the maths needed to make a new cone, using the voicecoil and center section of the original, which were still in good condition.
The surround was made from six pieces of cotton cloth. This was "doped" with shellac to stiffen and flatten it, and an original used to make a template. They were cut and stuck to the perimeter of the cone.
The poor cone - which had been patched up in our early 2000's work had now deteriorated to a very poor state:
I found some suitable card on-line, and worked out the maths needed to make a new cone, using the voicecoil and center section of the original, which were still in good condition.
The surround was made from six pieces of cotton cloth. This was "doped" with shellac to stiffen and flatten it, and an original used to make a template. They were cut and stuck to the perimeter of the cone.
I don't hold with furniture that talks.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
