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Old 27th April 2012, 07:48 PM   #1
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Default F5 PSU

I just want to verify my thoughts before i go spend a wad of cash on parts

I want to build a dual mono PSU for my F5 build.

Would this PSU design be appropriate for one channel? ie. i need to make two.

Also, would 2x300VA transformers be appropriate size.

Thanks

-Riley
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Old 27th April 2012, 08:07 PM   #2
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Old 27th April 2012, 08:26 PM   #3
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Mine wasn't dual mono but that's what I went with. That said, I would also explore CLC vs. CRC. I haven't built a CLC one but some folks prefer that route.
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Old 27th April 2012, 09:10 PM   #4
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you could save on the dual mono PSU and have a standalone PSU with umbilicals to each monoblock. Only have to build one PSU set and much bigger trafo.
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Old 27th April 2012, 09:19 PM   #5
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Actually, I second that. Separate PSU in general makes some things quite a bit simpler from a layout and wiring perspective. It's an extra enclosure to build though. But you won't have to worry about transformer hum.
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Old 27th April 2012, 09:38 PM   #6
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here is a dual mono F5.
6x12000uF and 225VA transformer pr channel.
and 1.7A bias and dual outputs
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Old 27th April 2012, 10:03 PM   #7
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Thanks for the replies. I will post pictures but they might be a while as i have a few projects ahead of this one and im just gathering parts.
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Old 27th April 2012, 10:41 PM   #8
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What kind of heat can two of those 10.08 HS take? I have the very same thing and was wandering how far you have pushed them.
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Old 27th April 2012, 11:29 PM   #9
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From where did you sourced the power supply boards?

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Old 27th April 2012, 11:32 PM   #10
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hello buzz mine are 6" high(long) and are now consuming about 90W pr side.
but they can do ALOT more if you can spread out the heat. only half of mine get warm.
and that half only get to about 45C on the baseplate( 1cm away from the outher transistors).
so 150W pr side with good heatspread is possible depending on your ambient temp.
mine is 22C

150W is guesswork but i think it's close actual numbers.

Last edited by AudioSan; 27th April 2012 at 11:37 PM.
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