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Old 17th May 2011, 07:22 PM   #71
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Originally Posted by Salas View Post
Nice short DCB1 build guide thread in the AC forum you did in August 2010 by the way.
Thanks Salas. Just spreading the love...
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Old 17th May 2011, 07:29 PM   #72
Salas is offline Salas  Greece
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Originally Posted by wushuliu View Post
Thanks Salas. Just spreading the love...
Its a shame they don't compose such pop any more...
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Old 17th May 2011, 07:38 PM   #73
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Quote:
Originally Posted by barrows View Post
mini kits, including: PCB, Transistors/FETS, but leaving out Rs, Caps, Diodes, LEDs, as these parts should be easy for everyone to obtain, and people may want to use their favorites. (Example, I like ON MSRF soft diodes).
Cannot use the sign up sheet on my computer, but will try on a different one later-I want at least one PCB set/mini kit.
I think the small 1R resistors are hard to find. They don't cost too much, Around 30 cents or so per rail set. I don't mind dropping the gate resistors, but those two are inexpensive MF one's, and will not add significant weight to shipping. The TO-220 devices will.

Dropping the diodes is a good idea. That could save .75-$1.00usd from the package.
I may offer the 2SK117's separately altogether, and likely in packages of 12-15, so one get's some variation in the IDSS. More on this later. I have to get a bunch in and test the variation. If I have to match them to be optimal, it will take a ton of time. Having extra's is good in case you blow something up.

So there is at least a couple of votes for small kits..
Less parts for me the better, Less work, quicker shipping, happier builders.
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Old 17th May 2011, 07:41 PM   #74
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Ahhh... that was just what I needed on this cloudy day...
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Old 17th May 2011, 08:04 PM   #75
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way old school - Almost like this....
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Old 22nd May 2011, 12:26 PM   #76
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Originally Posted by Salas View Post
Hi, was playing with the scope just now trying to track noise once more. To no avail with my scope. Its best is 5mV/diV. So I set it there and to 10us. From GD to AC it just seems brighter, not thicker when the reg is on, and the rascal gets a wee bit thicker only if I power the reg off. And that is with smallest 4u7 on output. I asked my bro for visual opinion, he took the mickey, so I quit.
Well done, Salas! These are marvelous final results.
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Old 22nd May 2011, 10:23 PM   #77
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Could someone please post a link to a thread with info on the design for this board.

Or, is it contained throughout the 4000+ post thread in the 'Power Supplies' sub-group???

Thanks,
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Last edited by sandbasser; 22nd May 2011 at 10:26 PM. Reason: spelling
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Old 23rd May 2011, 12:12 AM   #78
Salas is offline Salas  Greece
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Did you see post#1 here?
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Old 23rd May 2011, 12:57 AM   #79
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Well done, Salas! These are marvelous final results.
Don't trust scopes for really measuring such, takes an analyzer. The minimum thickness of their own line is an obvious limit for one. But not showing thick noisy lines is a good check for at least knowing results are adequate.
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Old 24th May 2011, 03:29 PM   #80
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I have added some columns into the spreadsheet for MiniKits, although price is not finalized, and I have not added it.
There are still some guesswork to be done on making sure that the 2sk117's provided are workable. Likely youll need to have 5-6 each per rail to make sure that one gets enough of a batch for good idss distribution. The kits will be priced according to parts costs, plus small handling and shipping cost addition to normal boards will be included in the 'per rail' price.

The kits will include all transistors, no diodes, no caps, and some resistors, as discussed previously. LED's are still on the table, awaiting feedback if people want them or not.

Also, the GB is going to be ended on June 13th, this allows us to get a quicker move on this, and hopefully the boards won't come to my doorstep while I am on vacation for a few days in early July.
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