[MRCA] DAV microphone

[WA5CAB at cs.com]

The DAV-2 preliminary manual shows and lists in detail the parts I listed 
earlier.  Ships 275 doesn't list DAV-(*).  NAVSHIPS 900,116 has one page headed 
DAV, DAV-1, DAV-2, no photos, and in the weight chart only says "Microphone and 
Headset Assembly" and the weight (3-1/4 lbs.).  The Navy Type No. and 
Dimensions columns are blank.  

The RS-38 (any variant) would of course work as a microphone but aside from 
connecting the carbon element to the line, the PTT switch wouldn't do anything 
else at least in the DAV-2.  But what was shipped originally with the DAV I 
have nothing on.  

In a message dated 9/18/2007 6:23:30 AM Central Daylight Time, 
robandpj at earthlink.net writes: 
> I have a picture of a DAV in a Navy book(...Contributions of the Naval 
> Research Laboratory...)  and the microphone looks like an RS-38 type.  It might 
> be a case of DAV vs. DAV-1, or maybe that picture is a prototype.
> 
> Rob Flory
> 
> -----Original Message-----
> >From: WA5CAB at cs.com
> >Sent: Sep 16, 2007 9:27 AM
> >To: rafantini at salisbury.edu, mrca at mailman.qth.net
> >Subject: Re: [MRCA] DAV project
> >
> >Ray,
> >
> >I don't know whether you are trying to get the original microphone and 
> >headset or not but if so, it shouldn't be that difficult.  The microphone 
> is a 
> >Signal Corps T-45 lip type.  I have quite a few NOSB.  The headset is the 
> same 
> >(including the skull cap) as that used on the MAB and, RBZ, except for the 
> cord.  
> >The one used with the DAV is a rubber-covered wye cord terminated in a 
> Signal 
> >Corps PL-54.  I have 6 or so of the receivers.  The wye cord from the RBZ 
> >could be converted by cutting off the flat rubber connector and replacing 
> it with 
> >a PL-54 to mate with the JK-26 on the radio cord.  I have some of the RBZ 
> wye 
> >cords but would have to do a physical check first to make sure that one is 
> >with both of the RBZ's I have.  Unless someone would like to buy a radio 
> and 
> >battery box standalone.
> >
> >As a substitute for the headset, you could use a Signal Corps HS-30 with 
> the 
> >low impedance cord or a HS-33 or HS-38.  For the microphone, an RS-38 or 
> T-17 
> >will work but you would have to build an adaptor cord to get from the PL-68 
> 
> >into the JK-48 on the cord.  And of coruse no PTT.

Robert & Susan Downs - Houston
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