Weak Ericofon Receiver

[dsk]

Since I had this extremely weak receiver removed from an old Cobra, I could try to dissect it.

I cut around the plastic square in the bottom, just guessing where the magnet should be located.

Under the plastic it was a little cast in aluminum, so I broke it off, and then a pretty weak magnet was ready to be pulled out. Not difficult, and the magnet could barely hang on my bench vice.

I could get 3 IKEA door magnets in where the magnet had been, that made a strong force on the diaphragm, I adjusted distance between the diaphragm and the poles, but I did not get a good sound. comparing with several others it still was far to weak.

dsk

[Spanish_phones]

Hi again,

It't great that you opened the speaker, in orther to know how it is inside.

Maybe the problem on your speaker is the diaphram, or, perhaps, the Ikea magnets are not neodimium ones, which are by far the strongest type.

Nevertheless, I hope this way saves some Ericofones

[Key2871]

Your lucky to get to that, as so many we're well glued so it was nearly impossible to get to it with out breaking or cracking something.

[Jim Stettler]

Here is a link for working on a ericofon. It has good information. It is by Richard Rose.
https://www.ericofon.com/work.htm


Jim