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Lovoltech LU1014D power JFET

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#645
LU1014D

It seems that the GRollins group buy is over and I have been searching for other sources for the LU1014D without any luck. I found that QSPEED currently makes them and I have emailed their sales rep without any reply. Does anybody know where to get these? Anybody else want to start a qroup buy?
I'd do it if someone wold tell where I cold get them

Tom
 
#646
Qspeed is the same company as Lovoltech. They changed their name. I never bothered to ask why.
By all means do a group buy if you want, but unless they've changed their policies, I think you'll find that their minimum quantities are prohibitive. The smallest number of devices you can buy is something like 2250. I may have that number wrong, but not by too much, unless, as I said, they have changed their policies. In other words, get some data before saying that you'll handle a group buy, because you're talking about thousands of dollars.
Another thing to watch out for is hammering them with e-mails. They had been hit by so many foolish e-mails asking if they would sell ten units that they were pretty fed up by the time I got to them. It took a bit of doing to convince them that I was serious and that I wasn't just asking for two, or ten, or even a hundred devices.
Don't say you weren't warned.

Grey
 
#650
You were warned.
They aren't interested in retail demand. It's trivial from their point of view. They don't mind selling a batch for audio use--if the quantity is large enough to make it worth their while--but their primary focus is computer power supplies.
I wouldn't bother trying to contact them unless you're ready (and I mean ready as in you can cut the check that day) to drop $3000.00 or so, minimum. The question at that point becomes whether there is sufficient demand left to turn over that many parts in less than ten or fifteen years (if ever).
Incidentally, I' like to note that I never even heard from 10-20% of the people who singed up for the original Lovoltech group buy and of the remainder, they rarely ordered as many as they had specified up front.
Again, don't say you weren't warned.

Grey
 
#651
DIYers from European GB :

meanman1964 - 4u
CeeVee - 20u
Kraljmatjaz - 10u
Peng - 6u
SandMark - 20

LU1014D are delivered to me !
Please be patient, I'll send you an individual mail for shipping terms in a couple of days.
News will be posted on this thread.
 
#655
CfM said:


Does someone know some products where these parts are used? With the rapid price decline of used/old computer parts it can be worthwhile to sacrifice some mainboards for the FET.

Greetings,
Chris
Click to expand...


Sorry, but I have no idea. I would also recommend against e-mails asking Lovoltech/Qspeed, though, as most firms regard their part choices as proprietary information (although it frequently falls into the "open secret" category).
As an example, an engineer at Caddock told me that a certain company had had to completely revoice their speaker after switching over to Caddock resistors because it had cleaned up the high end so much that they were able to reduce the tweeter levels; they realized that they had been substituting quantity for quality in the high frequencies. Since I already had him on the phone, I asked if he was at liberty to say who it was...he wasn't. Interestingly, the engineer himself was not an audiophile, he was just repeating, more or less verbatim, what he'd been told by the manufacturer. I had to translate from audiophile-speak to tech-speak for him to grasp what they'd been telling him.
If you're planning on gutting PCs to get these things, I'd advise looking in portables manufactured overseas. On the other hand, I have no idea how in the world you'd manage to get, say, a half-dozen Brand X PCs at a cheap enough price to make it worth your while to scavenge the JFETs out of the power supply. And that's assuming you could identify who's using them, and that none of the JFETs were blown in a lightning strike, and that your next door neighbor isn't also a DIYer willing to hit you over the head for these parts...

Grey
 
#657
From a combination of reading between the lines and personal experience, I don't think Nelson is looking to get into the parts business. It's a lot of work for very little return, and that's not a good business model.
Note that he doesn't supply parts via PassDIY anymore. I don't think the cost/benefits ratio was sufficiently favorable.
The one exception I can see is parts he has decided he no longer needs. It would provide some turnover on dead stock and recoup investment money. No, I have no idea what he has sitting around gathering dust. I doubt that he's reached the point where he's sufficiently tired of the Lovoltechs to start dumping them.

Grey
 
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