geoffreywh Posted March 12, 2009 Share Posted March 12, 2009 Hi, I just bought a David Clark H10-76XL headset, I know the mike will need changing for GA aircraft, the headset lead also ends in a U-174/U (helicopter or US military) plug. BUT, rather than extend the lead with an adapter, I would prefer to change the plug on my dash. From two jack plug receptors to a single (4 contact ) helicopter one. I can get the socket easily. Plus I have a diagram of which wire goes where on the helicopter plug.. BUT, How do I identify which wire is which from the (single ) cable.....Or I could change the whole lead to a GA ( I have an old donor headset ) Again I would need some wiring explanation, Can anybody help?........Geoff Link to comment Share on other sites More sharing options...
Guest Maj Millard Posted March 12, 2009 Share Posted March 12, 2009 I have some DC wiring diagrams some where I could dig them up and fax them to you. Or try the DC web site...........or... buy a nice new set from forum pilot shop. Link to comment Share on other sites More sharing options...
geoffreywh Posted March 12, 2009 Author Share Posted March 12, 2009 Hmmm. Sorry, Love to help BUT but the headset (David Clark H10-76XL) was $US230. new! (converts to $1876.22 ?) So I just can't help, however much I like to buy in Australia. I did just open the box and find a diagram! all I need to know now is:- how do I tell which wire is mic. hi and mic. low, phone hi and phone low? maybe I should ask Microair (see... I do buy Australian when it's economically viable) Geoff.... Link to comment Share on other sites More sharing options...
icebob Posted March 13, 2009 Share Posted March 13, 2009 Hi Geoff, the microair web site has the plug wiring and colours as a pdf file, too big to download to this site. Bob. Link to comment Share on other sites More sharing options...
geoffreywh Posted March 13, 2009 Author Share Posted March 13, 2009 Solved... No, the website doesn't say which is mike HI and mike LOW ect. But seeing as there are only two wires to get mixed up ( I already know from the old twin plug set-up which are mike and which are headphone) I can only get each pair wrong once! I seem to have answered my own question .......................So Thanks again ....G Link to comment Share on other sites More sharing options...
Guest pelorus32 Posted March 13, 2009 Share Posted March 13, 2009 Hi, I just bought a David Clark H10-76XL headset, I know the mike will need changing for GA aircraft, the headset lead also ends in a U-174/U (helicopter or US military) plug. BUT, rather than extend the lead with an adapter, I would prefer to change the plug on my dash. From two jack plug receptors to a single (4 contact ) helicopter one. I can get the socket easily. Plus I have a diagram of which wire goes where on the helicopter plug.. BUT, How do I identify which wire is which from the (single ) cable.....Or I could change the whole lead to a GA ( I have an old donor headset ) Again I would need some wiring explanation, Can anybody help?........Geoff G'day Geoff, I have two DC helicopter headsets and I use the adaptor on them. It works really well and I never notice the extra length in a negative sense. Is there a particular reason you don't want to use the adaptors? It actually makes them very adaptable ;-) if you want to jump in a fling wing - just unplug the adaptor. Regards Mike Link to comment Share on other sites More sharing options...
geoffreywh Posted March 13, 2009 Author Share Posted March 13, 2009 The length of cable that I actually need is about 2 feet, so any excess hangs down beside me. There is already a 3ft. coiled cable, battery box then another coiled cable, it's all getting a bit much. I soo dislike extra connections and I'll go a long way to eliminated any, Funnily enough I was at Moorabbin yesterday I went to a radio / avionics repair place and, yes,in a dusty old box they had the socket I needed (NATO jack) But no, the woman would not sell it to me as she didn't know how much it was worth!!!! I offered lots of bucks but no, wouldn't go with it. I said well send me a bill. To no avail, in the end I told her she might want to put it in that dusty old box she has....For future reference so to speak. Buy Australian? If you can! Link to comment Share on other sites More sharing options...
icebob Posted March 14, 2009 Share Posted March 14, 2009 Hi Geoff, I picked a NATO plug and socket up from a Dick Smithor Jaycar store last year for an electronics project Link to comment Share on other sites More sharing options...
geoffreywh Posted March 14, 2009 Author Share Posted March 14, 2009 I tried jaycar already, only sound equipment plugs there. I don't think Dick Smith stocks components anymore Link to comment Share on other sites More sharing options...
icebob Posted March 14, 2009 Share Posted March 14, 2009 Hi Geoff, sorry not Dick Smith it was Altronics in WA part C9093 or C9092. Bob. Link to comment Share on other sites More sharing options...
geoffreywh Posted March 14, 2009 Author Share Posted March 14, 2009 $160? wow, but that's the lead with plugs. I just want the NATO socket........should be about $15....Anybody know where I can get one..(Apart from Moorabbin?) Link to comment Share on other sites More sharing options...
icebob Posted March 15, 2009 Share Posted March 15, 2009 wow i don't remember it being that expensive???? I did need the lead and socket and from memory i had to buy both just to get the socket. Bob Link to comment Share on other sites More sharing options...
Blue Drifter Posted March 16, 2009 Share Posted March 16, 2009 Nobody has mentioned the fact that the H10-76 headset is a lo impedance set. It is used in our Companies S76 helicopter and the BK117. If you try to use it in a Hi impedance system it might not work, or it will interfere with the other headsets that are plugged in. If you wish to convert it you will need to change both the mic and the earpeice speakers. These parts are avialable from AVIALL or EDMO. Also the lead you need is about $50 bucks from EDMO. Hope this helps Link to comment Share on other sites More sharing options...
Admin Posted March 16, 2009 Share Posted March 16, 2009 Nobody has mentioned the fact that the H10-76 headset is a lo impedance set. It is used in our Companies S76 helicopter and the BK117. If you try to use it in a Hi impedance system it might not work, or it will interfere with the other headsets that are plugged in. If you wish to convert it you will need to change both the mic and the earpeice speakers. These parts are avialable from AVIALL or EDMO. Also the lead you need is about $50 bucks from EDMO. Hope this helps Note that EDMO doesn't deal direct as they are an importer/distributor so you will need to go through an outlet like Clear Prop Link to comment Share on other sites More sharing options...
geoffreywh Posted March 16, 2009 Author Share Posted March 16, 2009 Found it... it's OK I know about the low impedence thing, I have a donor headset, an old H10-80 4 kilo jobbie. I used the mike and earphones from them. I HAVE found a female U/174 socket. No less than 40 something dollars!.. EDMO were very knowledgeable,helpful and tried hard but had no stock....The whole point was to keep all the leads as simple and as short as possible.The cost wasn't a major factor. Found a wholesaler that would only sell me four ($100!) I should have just made one. Would have been quicker (and better!) ... Link to comment Share on other sites More sharing options...
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