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Old 30th August 2002, 08:37 PM   #1
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Default Aleph X Power buy?

Hello,


Is the AlephX ready for prime time?


Against better judgement, are there people who would be interested in the following "power buy":

1) Aleph-X (Gray/Inlow version) Printed Circuit Boards - Professionally made (soldermask, silkscreen, heavy copper) ~ $50

2) Transformers (QTY 2 300VA? toroid, electrostatic shield) ~100
3) Power supply caps, rectifiers, inrush ~75

3) All semiconductors (matched 9610's, IRFP044, MPSA18) ~100

4) All diodes, resistors, caps ~40

5) Optionally - heat sinks ~125

If enough people are interested, I will get some real prices.

Full price would be around $500 plus shipping
I would hope to shave around $100 = 400.00

P.S. If this sounds too much like selling a kit, please flame away. I will retract the offer
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Old 30th August 2002, 08:55 PM   #2
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I would be happy with a board or 2. Keep me in the loop.

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Old 30th August 2002, 08:56 PM   #3
Apogee is offline Apogee  United States
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Could be interesting....

I would want larger transformers though...

Also, I wouldn't need the heatsinks...

I would certainly be interested...

Thanks,
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Old 30th August 2002, 09:32 PM   #4
BrianGT is offline BrianGT  United States
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If only I didn't have to pay for college, I could afford great projects like this. I am still recovering from the costs associated with my Aleph 2 project, which I am still working on.

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Old 30th August 2002, 09:35 PM   #5
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Brian,

Actually, I wanted to talk to you regarding your new Aleph layout. I am curious whether or not people are more interested in the proven Aleph series or the more DIY Aleph-X. I should not have posted before writing you. Sorry.

Dale

P.S. I will send out your fets tomorrow.
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Old 30th August 2002, 10:19 PM   #6
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I am currently testing a population of IRFP150's and should have several matched sets of 6 and a great many more matched sets of four. A set of 6 will output roughly the same power as 10 IRFP240's and have twice the junction tolerance. NP has used these and has driven them to 50W dissipation per device and not found any problems. If you take these extras off my hands I might even throw in some MPSA18's. Feel free to email me if you're interested.
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Old 30th August 2002, 10:24 PM   #7
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I'm interested, although I may be more interested if you go with a different Aleph, particularly the 2.
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Old 30th August 2002, 10:25 PM   #8
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Does the amp work ?
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Old 7th September 2002, 10:43 AM   #9
hifiZen is offline hifiZen  Canada
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Thumbs up Aleph-X

I'd be interested in going in on / hosting a power buy on Conrad Engineering heatsinks from Australia. Maybe Plitron power trannies too. Trannies I'd be looking at are 225VA 12+12V from their standard line. I'd be interested in matched IRFP044 and IRF9610s too...

As far as PCBs go, I wouldn't mind, but I have some very specific requirements in mind for mine, including tight dimensional constraints and some tweaks I want to apply, most notably a variation of HarryHaller's FET/LM329/ZVP3310A current source for the diff pair in place of Grey's 9610 CCS. I'd also want to add a few empty component spaces for populating compensation caps if necessary. At this point, I'm planning to just skip the boards and just do P2P.
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Old 8th September 2002, 04:47 PM   #10
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Default Aleph2 Group Buy

Hi Guys,

Brian and I are evaluating heat sinks from M&M Metals. Brian's new Aleph2 PCB layout is almost ready. Will get together a price list soon.

Best Regards,

Dale

Click the email button below to contact me

Edit: Multiplexor - Oct. 14, 2002. 2:35pm
Action: Modified email address to say "Click the email button below to contact me"
Reason: This way webcrawlers won't pickup your email address.
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