John:
Do not cut the speaker cone. It serves two positioning purposes.
First it holds the voice coil in place so that it does not rub
against the magnet or driving coil (depending on the speaker type).
Second it provides the spring that allows the coil to return to the
center of its travel from either direction. Cutting the cone
material would seriously compromise both of these actions. I would
think that an earphone module would serve your purposes quite well.
They would make some audible sound, but it wouldn't carry very far.
best wishes,
dave belsley, w1euy
On Dec 22, 2005, at 6:41 AM, [EMAIL PROTECTED] wrote:
I am interested in determining which earphone (or speaker) would
have the
highest physical movement. I am deaf and intend to read morse by
feeling the
vibration. Once I have found the earphone/speaker, I then have
another
problem. I suspect I will have to find the K2's best audio that
fits the device,
then I need to nullify its audio output, since I do not want the
neighbours to
be annoyed by loud morse noise. I partially understand how a
speaker works
and in order to decrease its audio output I will have to remove or
partially
remove the paper which joins the core to the outer body - but will
it still
vibrate ?. Any suggestions would be most welcome.
John G4BOU
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
