[Milsurplus] WWII-era USN headphone question

[Rev. Don Sanders]

If you have any inoperable receiver units in the headphones, you can replace
them with the receiver piece from a regulat old telephone. They are usually
300 to 500 ohm and the cost is reasonable. I have used them on the output of
my ARC 5 receivers for a local speaker.

Healthfully yours,
                          DON W4BWS
----- Original Message ----- 
From: "Mike Hanz" <AAF-Radio-1 at cox.net>
To: <milsurplus at mailman.qth.net>
Cc: <WA5CAB at cs.com>
Sent: Monday, July 18, 2005 1:28 PM
Subject: Re: [Milsurplus] WWII-era USN headphone question


> WA5CAB at cs.com wrote:
>
> >Look up NT-49456 Receiver.
> >
> Good catch - confirmed my suspicions about the frequency range:
>
> RECEIVER USED W/ RE9175b
> 300 OHM IMPEDANCE, FLAT FROM 100-6800
> CPS.  OVERALL DIAMETER 2 1/32". THICKNESS 1".
> 14 OHMS dc RESISTANCE
>
> 8/23/43  CQF: PDR-8  USED W/ re-9175
> DEC. 44  EXTENDED RANGE.
>
> As an aside, CQF: PDR-8 is what's inscribed on my ARR-3 phones - no 5
> digit Navy number, though.  Looks like the first hi-fi phones!
>
> Also listed is the associated headset assembly, 49455, used w/ RE-9175B,
> JM, and JR.
> CONSISTS OF TWO RECEIVERS 49456, ONE
> HEADBAND 49453-A, TWO EAR CUSHIONS 49104B,
> ONE CORD -49012C, AND ONE PLUG 49034A.
>
> This can easily get into a scavenger hunt with no end...  :-)
>
> >Also, what I have here indicates 49015 used a long Wye Cord with pin
jacks
> >(49012 cloth or 49012-C rubber covered).
> >
>
> Not what the one I have on the web page says - it shows a 49017 cord.
> Makes more sense, too.
>
> 73,
> Mike
>
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