[MRCA] 10-meter FM Progress

[Gene Smar]

Al et al:

     I built up a battery box formy PRC-10 using dollar store batteries. 
The parallel filament D batts are the only ones I've had to change, prolly 
because they fed DC into each other while they were in the batt box. 
However, that was after a year n storage.  They last long enough for some 
useful QSOs.

     Here's a photo of what one guy did to built a realistic appearing box: 
http://www.worthpoint.com/worthopedia/army-military-radio-battery-box-prc-10-prc-9 . 
He prolly used this article 
http://www.armyradio.com/arsc/customer/pages.php?pageurl=/publish/Articles/Power_Up/PRC-8.htm 
to wire up this box and slip it into the outer cover of a BA279 batt.  I 
built a batt for my own -10 based on this design.

    And finally, here's a description of a commercial DC-DC supply for these 
babies:
http://www.armyradio.com/arsc/customer/product.php?productid=1588&cat=71&page=1 .

     I can bring my -10 to Gilbert in the fall.  In the meantime, I'll 
consider buying my own -9 and joining you on 10M,  I'll let you know if I 
end up with one in my garage work shop.


73 de
Gene Smar  AD3F


----- Original Message ----- 
From: "Al Klase" <al at ar88.net>
To: "Military Radio Collectors Association" <mrca at mailman.qth.net>
Sent: Saturday, March 19, 2011 2:06 PM
Subject: [MRCA] 10-meter FM Progress


> Gang,
>
> I took a chance on a disreputable looking PRC-9A on E-bay.  It arrive
> promptly, and is now functioning reasonable well in the shop, surrounded
> by four separate bench supplies, and a rat's nest of wire.
>
> I want to get this running for the MRCA meets, maybe even the Spring
> Meet in Sussex County, NJ, 16-17 APR.  So I'm looking to buy some stuff.
>
> 1) A battery box.  Would consider a PRC-8/9/10 parts set.
> 2) An AM-598/U amplifier/PS.  This might obviate #1.
>
> Does anyone have any experience powering one of these radios?  I found
> Dennis Stark's writeup <http://www.qsl.net/wb4tur/images/dcdc.htm>.  But
> that's probably not the way I'd do it if I build a DC/DC supply from
> scratch.  These things need 1.5 and 6 volts at about a half amp each,
> and 67.5 at about 20 ma. plus 135 at 40 ma on transmit.  I don't thonk
> dollar store 9-volters are going to do the trick for long.  Silly little
> thing has about 15 tubes.
>
> Also, does anyone have a scan of an accurate schematic for the PRC-9A.
> It's subtly different from the original set.
>
> Any help appreciated,
> Al
>
> -- 
> Al Klase - N3FRQ
> http://www.skywaves.ar88.net/
>
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