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Author Topic: Telex Airman 7 headset  (Read 204 times)

GodAtum

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Telex Airman 7 headset
« on: Wed, 7 Nov 2018 15:43 »
I'm hoping someone could clear my lack of knowledge ... these come with PJ-068 cable for the mic and a PJ-055 cable for the headset. Are these standard 1/8" TRS ends? Specifically will they work in a mixer?

Jeroen Hoppenbrouwers

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Re: Telex Airman 7 headset
« Reply #1 on: Wed, 7 Nov 2018 23:44 »
Did not look up this model, but 'normal' aviation headsets have a normal phone plug for the speaker, but a narrower one for the mike. Same construction, just narrower, and pretty difficult to get the mating connector, but not impossible if you go online to specialty stores (Digikey, Mouser, ...).

From Wikipedia:

Headphones

Commercial and general aviation (GA) civil airplane headset plugs are similar, but not identical. A standard ​1⁄4 in monaural plug, type PL-55 (both two-conductor phone plugs, a.k.a. PJ-055B, which mate with JK-24 and JK-34A jacks) is used for headphones. On many newer GA aircraft the headphone jack is a standard ​1⁄4 in phone connector wired in the standard unbalanced stereo configuration instead of the PJ-055 to allow stereo music sources to be reproduced.

Microphones

Aviation headphones are paired with special tip-ring-sleeve, 0.206 inch/5.23 mm diameter plug, type PJ-068 (PL-68, for the microphone. The PJ-068 mates with a JK-33 jack (Switchcraft C-12B), and is similar to the Western Electric plug WE-109.

In the microphone plug the Ring is used for the microphone 'hot' and the sleeve is common or microphone 'Lo'. The extra (tip) connection in the microphone plug is often left unconnected but is also sometimes used for various functions, most commonly an optional push-to-talk switch, but on some aircraft it carries headphone audio and on others a DC supply.


Hoppie

Edit.
Looked it up -- yes, standard GA headset.

GodAtum

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Jeroen Hoppenbrouwers

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Re: Telex Airman 7 headset
« Reply #3 on: Thu, 8 Nov 2018 09:37 »
The info is a bit sparse but I think this cable extends the mike cable -- same size on either end! I don't think it converts from narrow to standard phone. Of course you can cut off the narrow plug and replace it by a standard one quite simply.


Hoppie

GodAtum

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Jeroen Hoppenbrouwers

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Re: Telex Airman 7 headset
« Reply #5 on: Thu, 8 Nov 2018 23:27 »
Sure, but also 30 quid more expensive than it should be...

Gary Oliver

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Re: Telex Airman 7 headset
« Reply #6 on: Sun, 11 Nov 2018 15:02 »
Calling Mark Barnes...