[Boatanchors] Aviation Headset

[Mark Richards]

On 12/26/2013 11:23, David C. Hallam wrote:
> I have an Aviall microphone/earphone headset and can't seem to find 
> any information about the microphone or earphone impedance.  It seem 
> that the company is now owned by Boeing and don't sell this type of 
> item anymore.  Is there some kind of standard impedance for aviation 
> headsets?  I also don't seem to see any model number on the headset 
> either.  Does anyone know where I can find the information?
>
> David
> KW4DH
>
If it is similar to the MS50 (plantronics) the mic is dynamic and the 
headset 600 ohm.  The dynamic mic needs a bit of a preamp to work with 
ham gear in the MS50, and I just happen to be working on that...

Worth a try...

/k1mgy