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It allowed me to set the power supply .6 volts higher. I doubt seriously I'm causing a problem. The radio inside is nothing but a dx959 which should run off 13.8 volts. Some of the guys on here will take a simple beneficial modification and turn it into some big dangerous disaster that's going...

This mod was in relation to the Galaxy dx2547 power supply. It will allow you to get 13.8 volts. What you set it at is up to you. Strictly based upon 13.6 not being enough and how to acquire such.

Nobody runs their equipment at 13.6.

Yes. The purpose was not to get more power. The purpose was to bring the operating voltage up to where components are happier. They seem to run smoother Bolder a little louder than running it at a low voltage. They have a jack on the back of the DX 2547 to run it on DC like a mobile if one chose...

And I only output 1 watt am and 12 ssb. Nothing is being stressed. QUOTE="Larry A McClanahan, post: 634604, member: 52646"]I ALWAYS upgrade the regulator to an NTE37.

I ALWAYS upgrade the regulator to an NTE37.

But you have to be careful. I believe there is more than one power supply they are using in the DX 2547. For record-keeping purposes the power supply is marked RS - 100 - 12 with a sticker on the power supply

14.45 was what it was doing after the mod and the VR was still set all the way up where the factory set it but only putting out 13.6. So this is a good mod for these.

I set it at 14.2

and just for the record, It does not have to stay at 14.45. You can turn the output down to the level you desire on the variable resistor that is on the power supply after the modification.

Yes, that would have made a world of difference when they were trying to get back to Earth on minimal power. They also learned a lesson about the oxygen scrubbers. They should all be the same size and shape. But they still to this day carry duct tape to the Moon. Most of the newer radios, if not...

Perhaps a 3.1k would be good middle ground, but 3.0 is what I had.

It is nothing but a mobile with a power supply. When they switched to switching power supplies, they did not engineer their own power supply. They took what was available. And what was available at a cheap price was one that only puts out 13.6. All I did was raise the voltage up less than 1...

I would imagine 15 volts and Beyond is too much. I never go past 14.5.

The radio has a jack on the back of it so that you can run it on a power supply or run it in a mobile. I hooked it up to the power supply at 14.5 and it worked fantastic. I have never run any mobile on base at 13.8.

Don't know. But I do know that 14.45 is still within a safe range.

I bought a DX2547 to verify that my channel kit will work in it. I checked the voltage to the power supply in the radio. As per other radios I have had that contained a switching power supply, the max voltage available is 13.6. I changed out the resistor that is nearest the VR control. It tested...

But it's shone on the schematics. What is it. Antenna warning light adjust? Or something to do with the clarifier?

Figured out how to make one kit that works in the Dx-919, 929, 939, 949, 959, and dx979. The Galaxy 2547 will be a separate kit with a Rotory switch that is mounted in the headphone jack. Plug n play.

A simple switching module that allows the average Joe to plug a module in and have channels without cutting anything in there radio. Now, if the tech's went to use it I guess that's a good thing as well.