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Old 02-02-2007, 02:40 PM
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Re: FrankenPower! Building a 12V Power Supply

I'll give you a shout after next week Mike. I'll be out of town until next Saturday.

Jay
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Old 02-02-2007, 02:40 PM
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Re: FrankenPower! Building a 12V Power Supply

A kiss? No, that would be considered foreplay...
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Old 02-02-2007, 02:41 PM
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Re: FrankenPower! Building a 12V Power Supply

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Originally Posted by Road Builder View Post
I'll give you a shout after next week Mike. I'll be out of town until next Saturday.

Jay
Sounds good, Jay. Up to you, bud...
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Old 02-02-2007, 03:08 PM
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Re: Building a 12V Power Supply From Computer Power Supply

Quote:
Originally Posted by Mike Bargman View Post
No, it must be at least 10W, 10 ohm from my experience. Anything less than 10W will not put enough of a load on the board...
Two resistors, 4.7 ohms each, in series, will be 9.4 ohms and will actually put slightly more load on the PS than a single 10 ohm resistor. They will work fine.

The two 5 watt resistors, being equal resistance, will dissipate the power equally, so the equivalent power rating would be 10 watts. However, at 5 volts the actual power disspated should be only 2.6 watts. FWIW, a 10 ohm resistor across a 5v supply would be 2.5 watts. A smaller 10 ohm resistor rated at 5 watts would work fine.

So, use the 4.7 ohm resistors, they should work fine.

Bob R.
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Old 02-02-2007, 03:14 PM
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Re: FrankenPower! Building a 12V Power Supply

Awesome! Thanks for the info, Bob!
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Old 02-02-2007, 03:26 PM
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Re: FrankenPower! Building a 12V Power Supply

Man now its used. I will give you $10 LOL
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Old 02-02-2007, 03:38 PM
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Re: FrankenPower! Building a 12V Power Supply

Mike dont want to b pain in a### buy just got off the phone (38) min and they never herd of that

pevia model power supllyy do you have a tiger part# ?? Tiger dont know what I am talkinf about. Any help???
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Old 02-02-2007, 03:42 PM
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Re: FrankenPower! Building a 12V Power Supply

Warren this is not a model power supply. This is a computer power supply that has been modified for model power supply use. Here is a link with a part number http://www.tigerdirect.com/applicati...&Sku=A107-2000
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Old 02-02-2007, 03:55 PM
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Re: FrankenPower! Building a 12V Power Supply

Hey Chris,thanks for the email. Yea I went back and did my own snooping and I found it and ordered one, I guess the dont speak english too good thare. Buy the way I did order new Yak 54 for Aerotech,should b here next week. Thanks again dude.
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Old 02-02-2007, 04:08 PM
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Re: FrankenPower! Building a 12V Power Supply

Glad to hear it Warren. I am finishing up my BBW Yak right now. Waiting for some exhaust parts to come in that will bring the cans closer together and 8711's then we are in the air with #2.
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Old 02-02-2007, 04:48 PM
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Re: FrankenPower! Building a 12V Power Supply

Damn Chris, beat me to the punch...it's not used...it's "tested" I want double now...
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Old 02-03-2007, 08:32 AM
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Re: FrankenPower! Building a 12V Power Supply

Mike, Just wanted to pipe up and tell you all what a great thread this is. My dad tried this years ago and couldn't get it to work, back then the power was too little, not enough Amps he said - so he stayed with his little field 12V batts. Anyway, I sent him this thread to say the least. Also, I went on eBay and found the exact same Apevia 500W PS that you used, got it for $15. I'm going to Radio Shack this AM...

T J
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Old 02-03-2007, 12:22 PM
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Re: FrankenPower! Building a 12V Power Supply

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Originally Posted by betheballdanny View Post
Mike, Just wanted to pipe up and tell you all what a great thread this is. My dad tried this years ago and couldn't get it to work, back then the power was too little, not enough Amps he said - so he stayed with his little field 12V batts. Anyway, I sent him this thread to say the least. Also, I went on eBay and found the exact same Apevia 500W PS that you used, got it for $15. I'm going to Radio Shack this AM...

T J

Awesome, TJ. Post pics when you get it done!
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Old 02-04-2007, 01:05 AM
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Re: FrankenPower! Building a 12V Power Supply

Excellent walkthru. I just ordered the same powersupply. Always good to have around the house.
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Old 02-04-2007, 06:38 AM
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Re: FrankenPower! Building a 12V Power Supply

Mike, thanks for a great PS project.

i worry a bit about using the 5 volt rail for receivers. how well regulated is it, and how well filtered (DC) is it? a bit of a voltage spike could damage a receiver, unnoticeably at first...
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