[Milsurplus] Headset - ?'s

[John Hutchins]

Thanks to WA5CAB and Mike
Carbon Mic - checked out works, wiggles the VOM needs some cleaning.

Off hand -
    Anyone use DOT3 or DOT4  fluid to restore Rubber?

Thanks
Hutch

On 1/19/2016 6:59 AM, Michael Hanz wrote:
> It's an H-46/UR headset, and was agreeably a hodge podge when it was 
> first introduced, Hutch.  See middle of the page at 
> http://aafradio.org/flightdeck/Peripherals-headsets.html - and the 
> original 1945 modification instructions at 
> http://aafradio.org/flightdeck/H-46.html   It was highly prized when 
> it first came out because of its hands free capability compared with 
> the T-17 and RS-38 mics formerly used, and didn't have the 
> intelligibility drawback of the throat mics.  It's still a good 
> headset today.
>
> The Gummi Pfledge is as good as anything else I've tried, but 
> sometimes the rubber is past saving by any chemical.
>
> 73,
> Mike
>
>
> On 1/18/2016 10:19 PM, John Hutchins wrote:
>>
>> I purchased a Head set of EPAY for ~$20.00.  The stitching looked 
>> good and intact.  I received the Item the stitching looked like the 
>> pictures! Wow.  Then I flexed the head band out a bit, oops needed 
>> new stitches no problem, leather dry'ish not brittle quickly got
>> mink oil on all the leather parts.  Wiping the rubber parts with 
>> Gummi Pflege  rubber restorer.  Wiped the cloth cord on the HB-7 down 
>> with bees wax to preserve cloth insulated wire.
>>
>> Checking on the web it looks like a WWII+Korea+Vietnam hodge podge 
>> set up.
>> Headband HB-7  (WWII)
>> Speaker elements, ANB-H-1A, encased in rubber with shammy leather ear 
>> cups.  (Korea?)
>> Microphone M6-A/UR, on boom MT521/AU permanently affixed to left 
>> headphone. (Korea Vietnam?)
>> Cord CD 318-AM with SW-141V PTT switch, PL-68, JK48 (WWII)
>> Cord CD -?? with JK26 and PL55 (WWII)
>>
>> CheckN out the electric components, with an audio generator and VOM.
>> The Speaker elements, ANB-H-1A, responded well to stimulus from audio 
>> the generator.
>> Switch works correctly.
>> Cords check out.
>> Next Microphone M6-A/UR, shows resistance.
>>
>> Quick way to check if the microphone works, with out hooking up an amp?
>>    Is the microphone dynamic or carbon could not find a reference 
>> using a quick google search?
>>
>> Is there a better rubber restorer solution than Gummi Pflege?
>
>