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Old 11th August 2009, 04:12 PM   #571
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Quote:
Originally posted by d to the g
I use a spendy Keithley system at work to measure contact resistance in the tens of MOhm, with an applied voltage of 3mV. Is that good enough?
only good enough if you volunteer
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Old 11th August 2009, 05:08 PM   #572
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Quote:
Originally posted by luvdunhill


only good enough if you volunteer
Estimates on cost to populate this bad boy? I splurged buying parts for the new phonoclone and am cash poor at the moment.

If you wanted me to just a piece and ship it back I'd do that too. It's not my normal "smash stuff" testing, but I'd be more than happy to do it.
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Old 11th August 2009, 05:54 PM   #573
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I haven't added it all up yet. Here's a schematic with a BOM for two vendors, as well as a silk screen of the boards:

http://picasaweb.google.com/lh/photo...eat=directlink

http://picasaweb.google.com/lh/photo...eat=directlink
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Old 20th August 2009, 03:14 PM   #574
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well, they work

I also am still looking for a European tester. I cannot believe we had interest in 1000+ of these, and I'm hearing crickets chirp for prototyping help...

perhaps everyone is having fun at that ex-YU site
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Old 20th August 2009, 05:40 PM   #575
brianco is offline brianco  Ireland
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Quote:
Originally Posted by luvdunhill View Post
well, they work

I also am still looking for a European tester. I cannot believe we had interest in 1000+ of these, and I'm hearing crickets chirp for prototyping help...

perhaps everyone is having fun at that ex-YU site


You can count me in for deja vu - I used to have one many many years ago.
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Old 27th August 2009, 04:39 PM   #576
CeeVee is offline CeeVee  Portugal
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count me in as well.

I'll be happy to test, i'm planning to use it to power my new I/V boards for my Shanling....Thread elsewhere here.
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Old 18th November 2009, 08:46 AM   #577
Electrons are yellow and more is better!
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I'm about to move older group buy wiki pages. Can anybody enlighten me about this group buy? The wiki list is gigantic but didn't anything happen?
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Old 18th November 2009, 09:59 AM   #578
AndrewT is offline AndrewT  Scotland
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Originally Posted by peranders View Post
I'm about to move older group buy wiki pages. Can anybody enlighten me about this group buy? The wiki list is gigantic but didn't anything happen?
is this the GB for the four regulators based on Cetoole's design?

If so, it was on hold till the oscillation problem had been solved.

I suspect this GB can be revived if the PCB were kept small (very cheap and easily fitted inside source equipment) and a shuntie, maybe a Salas type were substituted.

BUT,
the attraction to so many potential buyers was the extremely small size and the very economic PCB incorporating 4 projects in the single board.
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Last edited by AndrewT; 18th November 2009 at 10:01 AM.
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Old 18th November 2009, 11:31 AM   #579
CeeVee is offline CeeVee  Portugal
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Hi,

P-A, AndrewT, the oscilation persists, the PCB i got from luvdunhill shows ( i can hear it too ) HF oscilation in my Orions.

Last edited by CeeVee; 18th November 2009 at 11:34 AM.
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Old 18th November 2009, 04:52 PM   #580
Electrons are yellow and more is better!
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Is this oscillation on every board or only under certain conditions?
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