Looking For A Cheap 40amp or 50amp power supply For A 400w Amp

[DJboutit]

I have a 400w Palomar amp that does SSB I need a 40amp or 50amp power supply I am looking for something that is about $100?? Currently I have a 10amp 12 amp surge pyramid regulated power supply might be enough to run the amp on low. I also have a car battery charger that does 50amp fast charger it make a decent humming sound at 50amp would this work or would give a lot of feed back when I transmitt??

 

[Beetle]

The car battery charger is likely unfiltered, producing half-wave (or, very unlikely, full-wave) rectification instead of steady DC. With a fully charged battery you might not notice any 60/120 Hz hum when receiving, but you'll probably get reports of hum on the transmitted signal. The "decent humming sound" is the sound of electrical equipment operating at or beyond what it's designed for. It's the only way it can call for help.

 

[Tallman]

I have a 400w Palomar amp that does SSB I need a 40amp or 50amp power supply I am looking for something that is about $100?? Currently I have a 10amp 12 amp surge pyramid regulated power supply might be enough to run the amp on low. I also have a car battery charger that does 50amp fast charger it make a decent humming sound at 50amp would this work or would give a lot of feed back when I transmitt??

Megawatt Power supplies. They are sponsors of this board.

 

[KD2GOE]

Megawatt Power supplies I have 1 and i am going to get 1 more.

 

[DJboutit]

Would the 36 to 41 amp Megawatt be enough for a Palomar 450HD??

 

[9C1Driver]

Probably not, your amp most likely has a 40 amp fuse inside and you want some buffer. The only way you might slide by is run it on Lo or Med and keep the drive levels down.

 

[222DBFL]

Megawatt carriers a 50amp model, I think it's right at $111. Give or take a few dollars. Good supplies for the money. The S700-12 is the one I would get.

 

[NeoHam]

Look up "server power supply" on ebay. You'll have to reseach what you want. I got HP one and soldered some big wires on the output. It's like 50 amp and I got it for $20. Maybe something like this http://rover.ebay.com/rover/1/711-5...0001&campid=5336136228&icep_item=371322497784

 

[Megawatt]

Would the 36 to 41 amp Megawatt be enough for a Palomar 450HD??

You would definitely need 50 amps to run that. The S-700-12 is also stackable to reach any amperage you may need in the future.

 

[loosecannon]

if your palomar is a 4 pill amp, and im guessing it is; 50 amps is not going to cut it.
you need an 80 amp supply to run that amp. you may be able to get away with 70 amps if its class C, but if its class AB then you are going to need 80.

don't waste your money on a 50 amp supply.
LC

 

[Megawatt]

if your palomar is a 4 pill amp, and im guessing it is; 50 amps is not going to cut it.
you need an 80 amp supply to run that amp. you may be able to get away with 70 amps if its class C, but if its class AB then you are going to need 80.

don't waste your money on a 50 amp supply.
LC

Is the Palomar 400 really only 40% efficient?

 

[DJboutit]

I think the Palomar does not even max at 500w more like 435w to 450w and that is ssb

 

[loosecannon]

is it a four transistor amp?
what transistors are in it?
model number?
LC

 

[The War Wagon]

I have JUST what you need - and I just lowered the price again!

http://www.armslist.com/posts/42382...ed-power-supply---75amp--price-drop---again--

I have MORE pics, if you like.

 

[KD2GOE]

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