I have a powermax 100 amp and want to know what voltage I should set it for and should I buy a big battery to run with it or can I use it by itself directly with the radio. The radio is a RCI2970N3 which is 300+ watts so I guess about the same as a 4 pill amp.
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Home power supply for linear amp - ever used one of these type?
- Thread starter ShakyMcQuiver
- Start date
13.8v seem decent
Run it direct to your radio.
Your 100A is plenty. I run my stuff right around 14.4 to 14.5v
Thank you that was my other question is what is the best safest voltage to set for the radio, RCI2970N3. You would think everyone including the company you bought it from.
Most Vehicles run 14.4 to 14.8 volts while running so that would be a safe voltage
I'll reopen this thread a moment, or two, before it gets too old.
I just connected my new MegaWatt S-700-12 50amp. I'm running an AT 5555n and a 203P amp. Good for 100 or so output. Driving with 3-4 watts AM for SWR checks and max output tests.
I was using a RadioShack Linear PS 10amp for the radio, and a battery+charger setup for the linear. The RS doesn't make a sound, and supplied the radio just fine.
This MegaWatts' fan is quite annoying. They advertise 10db lower fan noise. Lower than what? I'll put it under the back of the desk
Anyhow, pumping out whatever power I can, no lights dim on the equipment, voltage is set at 13.8v and stays there. One problem, my Wife has a touch lamp that blinks, dims, turns on-off, etc when I transmit. I'll have to fix the lamp with a manual 3 way socket.
I just connected my new MegaWatt S-700-12 50amp. I'm running an AT 5555n and a 203P amp. Good for 100 or so output. Driving with 3-4 watts AM for SWR checks and max output tests.
I was using a RadioShack Linear PS 10amp for the radio, and a battery+charger setup for the linear. The RS doesn't make a sound, and supplied the radio just fine.
This MegaWatts' fan is quite annoying. They advertise 10db lower fan noise. Lower than what? I'll put it under the back of the desk
Anyhow, pumping out whatever power I can, no lights dim on the equipment, voltage is set at 13.8v and stays there. One problem, my Wife has a touch lamp that blinks, dims, turns on-off, etc when I transmit. I'll have to fix the lamp with a manual 3 way socket.
I own a megawatt and it's served well for several years. It's the version before your quieter version so it is a little on the loud side. Mounted it under the bench and I get used to it.
Now the touch lamp, I once had a 98vhp that caused touch lamp issues in the house. Turned out the radio was a little dirty so rfi was causing those issues like you describe.
Of the 2 touch lamps we have in the same room, the one has a history of turning itself off when it warms up. It's been a problem for a long time. The other one is fine.
Install a 50 ohm resistor in series with the fan lead. It will cut the fan speed down and make a huge difference.
I took the fan out of mine and put a big 24v fan on the lid. Now it just whispers.
For now, I'll leave the warranty tape intact. I put it out of the way on the back corner of the desk. It's tolerable
I'm impressed with this MW 50 amp PS. It showed me a 12v 8ah battery isn't what I thought it was. It worked OK, but powering the radio and the 203p with separate power feeds woke the amp up. It went from PEP 100-110w to 150-160w output. Tuned with an AM carrier at 4-5w input. My first contact this morning was WR932 in Germany on 38L, using a Sirio GTE 27 on the chimney.
I'm happy.
I'm impressed with this MW 50 amp PS. It showed me a 12v 8ah battery isn't what I thought it was. It worked OK, but powering the radio and the 203p with separate power feeds woke the amp up. It went from PEP 100-110w to 150-160w output. Tuned with an AM carrier at 4-5w input. My first contact this morning was WR932 in Germany on 38L, using a Sirio GTE 27 on the chimney.
I'm happy.
If it's any help, John at Megawatt told me to add the resistor. He's cool with it.
I dont like switchers, I use one for my small box and do this to keep the noise out of my receive.