[Elecraft] Bluetooth adapter for K3 Audio

[Jim Brown]

On 4/29/2014 11:03 AM, Phil Kane wrote:
> Check with your audiologist to see if there is a device for your aids
> that is used to couple to a cellphone and is worn around your neck.

These are available from companies that make radio and infrared systems 
for the hearing impaired for public spaces. When I was designing and 
specifying these systems, I used Comtek for RF and Sennheiser for IR. 
Comtek is near Salt Lake City. See the NTC-102 on this page. 
http://comtek.com/earphones/  It comes with a 1/8-in plug, probably 
2-conductor(tip-shield). You will need to change the plug to a 
3-conductor plug (tip-ring-shield).

73, Jim K9YC