[MRCA] PRT-4/PRR-9 power

[B. Smith]

When you install a 9 volt battery for the receiver, install a 100 ohm 
resistor in the positive lead to drop the voltage to the receiver.  Be 
sure and cover your 9 volt battery with one hundred mile and hour tape. 
As I mentioned before you can fabricate a receiver battery connector 
using brass tubing. On my next  receiver I will install a diode in the 
positive lead also to prevent those little mishaps. The set looks like 
it would make an excellent platform for a local "simplex" repeater.

Z













On 11/24/2013 11:17 PM, Gene Smar wrote:
> Scott:
>      The PRR-9 battery is 6 Volts but you can use a 9-Volt battery in 
> its place.  One drawback about this higher voltage is that the squelch 
> doesn't fully shut off.  I read there is a bias adjustment available 
> inside the RX but I never messed with it on mine.
>      As for the PRT-4, I use two 9-Volt batteries in series instead of 
> the normal 15 Volts from the standard batt.  You can fit the two batts 
> inside the normal batt case that is part of the PRT-4.  I needed to 
> stuff a folded paper towel in first so that the batts would fit better 
> and not bang around inside the case.
>

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