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

ersmar at comcast.net ersmar at comcast.net
Wed Jul 26 21:09:35 EDT 2006


Rich:

     Here ya go:  http://www.du.edu/~etuttle/electron/elect9.htm .  Scroll past halfway down and look at the circuit for a 317 IC regulator.  That will let you put in 12 VDC and get our from 1.? - 5.? VDC.

73 de
Gene Smar  AD3F


 -------------- Original message ----------------------
From: "Richard Arland, W3OSS" <richard.arland at verizon.net>
> 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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