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10-17-2015, 10:04 AM
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Join Date: Feb 2010
Location: GTA, Ontario
Posts: 825
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Voltage regulator help.
I have a Kelly Aerospace (now Hartzell) alternator for my engine. It's an ALX-8521-LS. It's a 12 volt, 70 amp alternator that is not internally regulated.
Any suggestions on what voltage regulator to use with this?
I'm using a VP-100 in the 8.
Thanks
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10-17-2015, 11:14 AM
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Join Date: Apr 2007
Location: -
Posts: 501
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I suspect that either the B&C LR3C-14 or PlanePower R1224 would serve you well. Both are available at Aircraft Spruce.
David
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10-19-2015, 11:00 AM
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Join Date: Feb 2010
Location: GTA, Ontario
Posts: 825
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Thanks
Thanks David!
Don
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10-19-2015, 02:55 PM
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Join Date: Dec 2011
Location: Edinburg, TX
Posts: 617
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Look up Transpo V1200 regulator on the internet. About $90.00 if I remember correctly. Nice piece, adjustable, with overvoltage protection. It's not purpose made for aviation so I'm sure I'm fixing to get flamed.
__________________
RV-3 Rebuilding
RV-9 Flying and having fun, experimenting and having fun, did I mention flying and having fun?
RV-6A SOLD
Maule M5-235C SOLD
C-172G SOLD
Stinson L5 SOLD
Grumman AA1A SOLD
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10-19-2015, 03:06 PM
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been here awhile
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Join Date: Dec 2004
Location: North Alabama
Posts: 4,300
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Quote:
Originally Posted by Jrskygod
Look up Transpo V1200 regulator on the internet. About $90.00 if I remember correctly. Nice piece, adjustable, with overvoltage protection. It's not purpose made for aviation so I'm sure I'm fixing to get flamed.
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Probably not as much as I would be if I was to suggest a regulator from a mid-70's Ford (about $20US). 
But it would work just fine. |
10-19-2015, 04:40 PM
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Join Date: Dec 2011
Location: Edinburg, TX
Posts: 617
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Ahhh - but Sam it's not voltage adjustable and doesn't have overvoltage protection like the Transpo. Same hookup tho. Either one will work, just pay more for more features I guess. You can also get the overvoltage protection with one of Bob's crowbars added to the Ford regulator circuit and save a few bucks there. Lots of choices out there.
What I like about about an external regulator like these is you can get them about anywhere if you break down somewhere. Also you can mount them out of the heat of the cowling area and they should last about forever. Same goes for the B&C and others as well.
Just like the alternator threads - everyone has an opinion - and mine's the best acording to me!!!!
__________________
RV-3 Rebuilding
RV-9 Flying and having fun, experimenting and having fun, did I mention flying and having fun?
RV-6A SOLD
Maule M5-235C SOLD
C-172G SOLD
Stinson L5 SOLD
Grumman AA1A SOLD
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10-19-2015, 04:45 PM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,514
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One advantage of adjustable V and OVP
Quote:
Originally Posted by Don Patrick
I have a Kelly Aerospace (now Hartzell) alternator for my engine. It's an ALX-8521-LS. It's a 12 volt, 70 amp alternator that is not internally regulated.
Any suggestions on what voltage regulator to use with this?
I'm using a VP-100 in the 8.
Thanks
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If you think you might want to ever use a Lithium battery (like EarthX) then an adjustable regulator with over voltage would allow you to ensure that you fly save and light.
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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10-19-2015, 05:06 PM
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Join Date: Oct 2014
Location: WA
Posts: 70
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Regulator
Quote:
Originally Posted by Sam Buchanan
Probably not as much as I would be if I was to suggest a regulator from a mid-70's Ford (about $20US).
But it would work just fine. |
I have the same hartzell alternator as you on my IO-540, and I use one of the aftermarket Ford regulators. For 18 bucks, I carry a spare, haven't needed it yet. |
10-19-2015, 05:45 PM
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Join Date: Feb 2010
Location: GTA, Ontario
Posts: 825
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Wow...
After market Ford reg...have a part number for it?
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10-19-2015, 06:12 PM
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Join Date: Oct 2014
Location: WA
Posts: 70
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Regulator
Quote:
Originally Posted by Don Patrick
After market Ford reg...have a part number for it?
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Search "Tru-tech VR166T" on amazon. That's the one I use |
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