[MRCA] PRC-64 Battery Pack - need low power regulator

[Richard Arland, W3OSS]

Hi Breck:

Many thanks for responding.

I was on your site and saw your solution. Initially I was going to try that 
but then saw these 12VDC 1.3A/Hr SLAs that fit vertically into the PRC-64 
battery box with room to spare.

I got mine from ZBattery (www.zbattery.com) and they cost about $7.50/each. 
Also bought one of there 1A 12V SLA chargers since I wanted something that I 
could toss in the glove box and not worry about having a seperate chassis 
(like my homebrew SLA charger) to lug around. These are item code UB1213. I 
ordered them three days ago and they arrived tonight!!

I will let you know how I approach this problem. Hope to have this on the 
air by the time of the MRCA Meet at Gilbert in Sept.

VY 73

Rich Arland, W3OSS



----- Original Message ----- 
From: "B. Smith" <smithab11 at comcast.net>
To: "Military Radio Collectors Association" <mrca at mailman.qth.net>
Sent: Wednesday, July 26, 2006 8:34 PM
Subject: Re: [MRCA] PRC-64 Battery Pack - need low power regulator


> Rich, just a standard a LM-317 would work fb.
>
> What kind of battery did you order from that company (Zbattery)
>
> I have built several "battery trays" for the PRC-47/Delco  5300.And always 
> had a dedicated   supply for the receiver, usually  4.5 volts.
>
> http://mywebpages.comcast.net/smithab11/DELCO%20ver%202.htm
>
> 73 Breck k4che
>
> ----- Original Message ----- 
> From: "Richard Arland, W3OSS" <richard.arland at verizon.net>
> To: <mrca at mailman.qth.net>; <milpack at yahoogroups.com>; 
> <hfpack at yahoogroups.com>; "Ed Breneiser" <breneiser at dejazzd.com>; "Chip 
> Morgan" <wmorgan at outdrs.net>; <BOATANCHORS at LISTSERV.TEMPE.GOV>; 
> <armyradios at yahoogroups.com>
> Sent: Wednesday, July 26, 2006 7:50 PM
> Subject: [MRCA] PRC-64 Battery Pack - need low power regulator
>
>
> The batteries from ZBattery finally arrived and they are a nice fit for 
> the PRC-64 battery holder. I need to drop one 12V SLA stick output down to 
> 4VDC to supply the receiver.
>
> Does anyone have a recommendation for an adjustable low power voltage 
> regulator that will provide a 4V regulated DC output from one of the 12V 
> SLA sticks?
>
> Some folks have used series diodes, zeners, and of course there is the 
> wonderfully quaint dropping resistor. I'd hoped to be able to provide a 
> little more elegent solution to the problem of getting 4V DC for the 
> receiver on the 64.
>
> Suggestions?
>
> VY 73
>
> Rich Arland, W3OSS
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