new batch of mini Aleph amplifier and PSU boards - Page 25 - diyAudio
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Old 5th September 2010, 03:52 PM   #241
jleaman is offline jleaman  Belgium
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Originally Posted by Russellc View Post
Brian, I just pay paled you for a set of the power supply board and a set of the amp boards. I assume this is a stereo set? it occurred to me I usually build dual mono, do I need to pay for another PS board, or is the one sufficient for a stereo amp, on the same chassis of course.

Lastly, is there a BOM anywhere?

Thanks for the opportunity to build this.

on the website!
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Old 6th September 2010, 01:20 PM   #242
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Originally Posted by jleaman View Post
on the website!
found it!

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Old 5th October 2010, 02:46 PM   #243
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I sent payment for Mini Aleph kit. I am pump up ready to build.
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Old 16th January 2011, 01:14 AM   #244
Stale25 is offline Stale25  France
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Hi, I'm new to the forum.Excuse my English.
M aleph boards this January will be available on sale? If yes,this would be in rev2 ? Thanks
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Old 29th January 2011, 10:11 PM   #245
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Default F5 from Brians pcb's

Has anyone built a F5 based on these boards ? If so could you please post the details and/or a simple stuffing guide ? The mini-A is a little to small for ineffiecent speakers where the F5 may be just right ! I'm basically looking for something with a little more power but wont break the bank building it ! Any help would be greatily appreciated Thank's !
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Old 30th January 2011, 02:50 AM   #246
udailey is offline udailey  United States
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The miniA can be a 30W amp. Just use those little boards that came on the side of the main board. Populate them and make sure your toroid can handle it. Download the BOM and make changes between MiniA and Aleph30. Easier than building F5. Need bigger sinks, make sure if you change voltage that the caps can handle it.
purchase LDRs anytime Also try my Resistor Replacers or LDR based Input Selector Email me.
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Old 30th January 2011, 03:16 AM   #247
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Udaily Thank's: I realize that one can use the output boards ect ... but after looking at some of the F5 stuff I've seen it using 2) Irf240's thus not needing additianal componets. Also Hoping to use smaller heatsink's and transformer.
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Old 30th January 2011, 04:54 PM   #248
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thor f5 boards are available to purchase in the store here on diyaudio F4 & F5 - PCB Bank

also you'll find more than you need to know about them in the passlabs forum here Pass Labs - diyAudio

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Old 15th February 2011, 10:04 PM   #249
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I am building an mono block Aleph J with brian's boards and had a question about the psu boards. Is there a way I can wire it to use all six caps for just one channel to take advantage of more filtering? Why would you not use R3-R12 and take advantage of less ripple?
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Old 15th February 2011, 11:52 PM   #250
john65b is offline john65b  United States
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The power supply has 3 caps per rail. You have a + rail and - rail. Each channel needs power from the + rail and - rail to operate.

The three caps per side are not for each channel.

If you are making monoblocks, you will need two power supply boards.

You can add the resistors to get the CRC filtering, but just be sure they are the correct wattage
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