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#1621 |
diyAudio Member
Join Date: Oct 2003
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> every one that did, now have a stack of flat batteries
Have you not heard of Optima Yellow Deep Discharge Lead Acid Batteries (75Ah) ? We run our Aleph-X 100W with two of those, per monoblock. Patrick |
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#1622 |
Passive Aggressive
diyAudio Member
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Patrick might be able to help Audioholik with his voltage question. I believe his F5 is running 16V rails.?.
Of course he is running his own balanced version but might have some good input. Also, looks like Fredlock is getting 22V rails http://www.diyaudio.com/forums/showt...12#post1565412 And I went back but didnt see any Zen schematics. Must have been in the B1 thread. Uriah |
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#1623 |
diyAudio Member
Join Date: Oct 2003
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As posted umteen posts ago, the balanced version I built runs on +/-16V rails, and is biased at 2A per MOSFET. No problems with 16V as far as I am concerned.
But if you wish to reproduce the results Nelson published, then you should build as in his article. Patrick |
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#1624 |
diyAudio Member
Join Date: Sep 2005
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Attached is what I deem to be corrections regarding the fets that where pointed out. Maybe someone could just double check...
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#1625 |
diyAudio Member
Join Date: Jul 2005
Location: North East
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I could be wrong, and I suppose it would be easier to look it up than argue, but, I'll stick my neck out with this suggestion: I seem to remember most of the FirstWatt units are using an 18-18 250VA transformer?
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#1626 | |
diyAudio Member
Join Date: Oct 2004
Location: Waterloo
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R14 on the IRFP924 has holes, but is not marked.
Quote:
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#1627 |
Banned
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Looks pretty good, i like the layout, The output fets on one side, is a key idea.
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#1628 |
diyAudio Member
Join Date: Sep 2005
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Jim, I don't see the error you mention, everything looks connected...
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#1629 |
diyAudio Member
Join Date: Oct 2004
Location: Waterloo
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I see R14 by the IRFP240, but I do not see R13 by the IRFP9240. Perhaps I have just missed it.
Jim |
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#1630 |
diyAudio Member
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R13 is placed horizontal, under the thermistor.
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