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Old 28th Mar 2011, 08:50
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Tjosan
 
Join Date: Feb 2005
Location: Sweden
Age: 77
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Does anyone here have some experience of putting together an own headset?

I once bought a ground service headset (cheap) which I tried to use in a GA aircraft, with no luck. The mechanic at the airfield said it was because it did not have a built in amplifier. And the amplifier is why headsets are so expensive he said.

The headphones did work, but not the mic.

So, is it possible to buy these amplifiers some where?
And with the right technical knowledge you could build your own I guess.
First, the impedance in an aircraft headphone system is 600 ohms, yours are probably 32 ohms or less, this means that you're putting too high load on the system.

Second, the microphone amp is normally fed, not always, with power from the aircraft system, so it's a special design. Not necessarily expensive, but again built not to interfere with the rest of the system.

Third, buy yourself a headset built to be used in an aircraft, probably cheaper in the end.
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