[Milsurplus] AN/GRR-5 Thanks and Question

[Wayne Hertel]

Joe,
That controls the audio output power. The LO position disables the high 
output AF Amp tube V8, 3V4, by opening the plate lead and the filament 
center-tap ground return. Audio is then fed by V6, 1U5, to the output 
circuitry. It, as the manual states, reduced the current drain on both the A 
and B batteries, prolonging battery life. If running from AC, I don't think 
there is much advantage to one position over the other.
Wayne
----- Original Message ----- 
From: "carolew" <carolew at bellatlantic.net>
Cc: <milsurplus at mailman.qth.net>
Sent: Saturday, August 26, 2006 3:23 PM
Subject: [Milsurplus] AN/GRR-5 Thanks and Question


> First of all, I would like to thank all of your who offered advice in 
> replacing the buffer caps in my AN/GRR-5 power supply. Thanks to your 
> patience, wisdom and guidance, I replaced them without incident. The two 
> high-voltage buffers were both Black Beauties. Given their propensity to 
> leak, they were probably an accident waiting to happen.
>
> Second, I have a question. The Output screw on my AN/GRR-5 was set on Low 
> when I acquired the radio. That's the way I've been using it. However, in 
> reading TM-11-295, it appears that the Low Output setting was for when the 
> set was operated from dry batteries. Since I'm running it on 115VAC, 
> should I have it set to High Output?
>
> As always, thanks.
>
>                    Joe Connor
>
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