Power Supply

[Mr_Gnome]

I have a Pyramid 52 amp power supply. Is it normal when keying 100w and swinging to around 400w for it to drop around 1 volt?

Is it a bad thing on the radio/amp to run it at around 14.8 volts?

Thanks,
Mr Gnome

 

[DXman]

I have a Pyramid 52 amp power supply. Is it normal when keying 100w and swinging to around 400w for it to drop around 1 volt?
I would say NO!

Is it a bad thing on the radio/amp to run it at around 14.8 volts?
Shouldn't hurt it that I can see, I run the 2970dx radio @ 14.1 all the time.
Thanks,
Mr Gnome

 

[me 99]

The voltage drop is normal when you put a load on the supply.. I wouldn't be concerned unless it was dropping more than that..

The radio and amp should be fine at those volts.. I know many people running 15 volts and never had any issues..

 

[Mr_Gnome]

Ok thanks.

It's supposed to hit 15 volts, but only does, I'm guessing from my analog meter, 14.8 volts...I'd have to get a digital meter to get an accurate reading. It's a new supply I just got on 12-26-06.

I also have another Pyramid 52 amp that I need to replace the 8 transistors in the heat sinks, the fan and the voltage adjustment on the front. Maybe it also had the drop and I never noticed it. The more I think about it, I seem to recall it did drop and the 26 amp I had did also.

BTW, would Radio Shack carry those transistors?

Thanks,
Mr Gnome

 

[DXman]

Mr_Gnome,
I mis-understood what you were asking, I thought your supply was dropping "to" 1 volt, but instead it's only dropping "1" volt.

Sorry about that.

 

[Mr_Gnome]

DXman,

Hey, no problem. I re-read what I wrote and I can see where you though I meant it dropped down to only putting out 1 volt.

Thanks,
Mr Gnome

 

[lords]

you ever get that power supply working?

 

[TonyV225]

That supply will drop and thats fine if you were having troubles do to the drop your radio reports would be unpleasurable they would be what you dont want to hear. As for the voltage being to high that pyramid wont hurt it there within a safe area guideline I think 15Volts is max handling on alot of dc equipment or shall I say standard equipment excluding modified or custom equipment such as comp amps ETC

 

[Captain Kilowatt]

I would think that at 400 watts out you are pushing the power supply to the max it can deliver and in that case a voltage drop of 1 volt is not to be unexpected.Where are you measuring the voltage at? Right at the output terminals or at the radio/amp?