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Author Topic: UA-5 and 7.2v Battery  (Read 2884 times)

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Offline AT853rxwh

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UA-5 and 7.2v Battery
« on: May 24, 2004, 09:53:37 PM »
Think it was Fozzy that was running it, but I remember reading that the regulator in the UA-5 took 8v-38v?  

Anyone else running 7.2v batt on their ua-5?  
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Offline sexymexi

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Re:UA-5 and 7.2v Battery
« Reply #1 on: May 24, 2004, 10:02:24 PM »
i've only run 9-12v to the ua-5.  i don't think it would work off 7.2, i could leave my battery on, and see how low it goes checking the voltage.  if i have time i'll do that tomarrow. peace.
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Offline Mojowill

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Re:UA-5 and 7.2v Battery
« Reply #2 on: May 25, 2004, 12:26:17 AM »
I believe there is a thread in the archive that explains the voltage re(8-12 i think).  I run on 9.6 cause that was what was reccomended and readily available.  The current draw with phantom power is 450 mA.  
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Offline ChrisV

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Re:UA-5 and 7.2v Battery
« Reply #3 on: May 25, 2004, 01:50:54 AM »
It may work for a little bit since a fully charged 7.2V would be over 8V...but as it starts to discharge not sure if it would work once it gets under the 8V mark.
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Offline AT853rxwh

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Re:UA-5 and 7.2v Battery
« Reply #4 on: May 25, 2004, 06:05:58 PM »
Found the thread, it was hiding in the 12v ua5 thread


http://www.taperssection.com/yabbse/index.php?board=25;action=display;threadid=18442

So the big question is does the phantom work at 7.2v?

I would think that running it at the lower voltage would be better as the regulator wouldn't have to generate any heat regulating the voltage down...

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Offline fozzy

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Re:UA-5 and 7.2v Battery
« Reply #5 on: May 25, 2004, 07:55:13 PM »
Just saw this but yea i was running mc012's > UA5 > jb3.  Should have my 481's in a few days so i will be doing some more testing.

Phantom power is on.  i can run up to 3 7.2v packs at a time with my current power cable hack and hot swap them at will.  I have 4 new 3400mAH packs and 3 1500 packs that are thrashed.  I have got 6+ on the old packs and 20+ on 3 of the new packs.   I also use Dean's plugs instead of the standard RC pack plugs.

I also have a 4pin cable for any situation that requires a SLA that i have never used in the field.

 let me know if you want some better pics

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Rig:
MK 4V > KCY 250/5 Ig (KS 10I)  > VST62IUg > V2 > 722

Playback 1: Audiophile 2496 > coax > Benchmark DAC1 > AKG 701
Playback 2: Audiophile 2496 > coax > Benchmark DAC1 > Audioquest Diamondback XLR > PS Audio HCA2 > Kimber 4pr >B&W 600S3
Playback office: Generic Pci coax > Lucid DAC9624 > AKG K240

Offline AT853rxwh

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Re:UA-5 and 7.2v Battery
« Reply #6 on: May 25, 2004, 08:58:30 PM »
+t Fozz!  Thanks for the info!

What meter is that btw?
« Last Edit: May 25, 2004, 09:03:04 PM by mikesus »
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Offline fozzy

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Re:UA-5 and 7.2v Battery
« Reply #7 on: May 25, 2004, 10:42:44 PM »
monitor is a SVU-1 running line out on the UA-5.  Right angle mini optical on the left.  Y cables splitting the Line out cable to an additional set of RCA's outs for patchers.  
FT: AT853 hyper caps, I need white, have black pair

Rig:
MK 4V > KCY 250/5 Ig (KS 10I)  > VST62IUg > V2 > 722

Playback 1: Audiophile 2496 > coax > Benchmark DAC1 > AKG 701
Playback 2: Audiophile 2496 > coax > Benchmark DAC1 > Audioquest Diamondback XLR > PS Audio HCA2 > Kimber 4pr >B&W 600S3
Playback office: Generic Pci coax > Lucid DAC9624 > AKG K240

Offline mirth

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Re:UA-5 and 7.2v Battery
« Reply #8 on: May 26, 2004, 11:40:47 PM »
Team SVU-x all the way, baby!
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Offline fozzy

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Re:UA-5 and 7.2v Battery
« Reply #9 on: May 27, 2004, 10:06:55 PM »
4hrs and going w/ the 481's on a single 3200mah 7.2v.  I am concluding that 7.2v works w/ my new config as well.  

FT: AT853 hyper caps, I need white, have black pair

Rig:
MK 4V > KCY 250/5 Ig (KS 10I)  > VST62IUg > V2 > 722

Playback 1: Audiophile 2496 > coax > Benchmark DAC1 > AKG 701
Playback 2: Audiophile 2496 > coax > Benchmark DAC1 > Audioquest Diamondback XLR > PS Audio HCA2 > Kimber 4pr >B&W 600S3
Playback office: Generic Pci coax > Lucid DAC9624 > AKG K240

Offline Kindguy

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Re:UA-5 and 7.2v Battery
« Reply #10 on: June 05, 2004, 12:39:32 AM »
T+ fozzy I like that notebook setup.
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Offline fozzy

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Re:UA-5 and 7.2v Battery
« Reply #11 on: June 05, 2004, 11:54:11 AM »
T+ fozzy I like that notebook setup.

Works great in my backpack w/ a laptop pouch.  I stole the idea from someone here
FT: AT853 hyper caps, I need white, have black pair

Rig:
MK 4V > KCY 250/5 Ig (KS 10I)  > VST62IUg > V2 > 722

Playback 1: Audiophile 2496 > coax > Benchmark DAC1 > AKG 701
Playback 2: Audiophile 2496 > coax > Benchmark DAC1 > Audioquest Diamondback XLR > PS Audio HCA2 > Kimber 4pr >B&W 600S3
Playback office: Generic Pci coax > Lucid DAC9624 > AKG K240

Offline aberg

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Re: UA-5 and 7.2v Battery
« Reply #12 on: July 29, 2004, 08:51:01 PM »
I'm running a test now on a 1500mah 7.2v RC batt I had lying around... I wanna be able to power the UA-5 for single band nights with something more portable than a 12v.... we'll see how long that can last... 1 hour so far with no problems and the optical is still powered and workin' fine.

Offline fozzy

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Re: UA-5 and 7.2v Battery
« Reply #13 on: July 29, 2004, 09:34:23 PM »
I think i was getting b/w 1-2 hrs on an old and busted 1500, ~6 on the three pictured above.  I now run 4 3400 or 3200 ( i forget) 7.2 volt batts.  FWIW the batteries have always been peak charged. 
FT: AT853 hyper caps, I need white, have black pair

Rig:
MK 4V > KCY 250/5 Ig (KS 10I)  > VST62IUg > V2 > 722

Playback 1: Audiophile 2496 > coax > Benchmark DAC1 > AKG 701
Playback 2: Audiophile 2496 > coax > Benchmark DAC1 > Audioquest Diamondback XLR > PS Audio HCA2 > Kimber 4pr >B&W 600S3
Playback office: Generic Pci coax > Lucid DAC9624 > AKG K240

Offline aberg

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Re: UA-5 and 7.2v Battery
« Reply #14 on: July 29, 2004, 11:49:02 PM »
Yup, it stopped at about 75 mins.... that's no good. I'll try charging for twice the amount of time.. I don't really care if I fuck up the battery.. it's old news.

 

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