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Old 20th June 2007, 12:35 PM   #1
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Default F4 matched FET's

All,

Some time ago I bought a large number of fets for my own projects, as I found that larger batches have higher efficiency when you really want closely matched fets.

The excess fets were made available in Matched IRF FET's

Given the number of reactions received in the last week, I worked out a possiblity to make fets available for a much better price. When there is a requirement in excess of 300 fets per type (IRFP240 and IRFP9240) I get an extra discount also there will be less unused fets.
This means the price goes down to 2,78 euro per fet / 33,36 euro for a full set of fets for an F4.

Would this be interesting?
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Old 20th June 2007, 12:39 PM   #2
giulio is offline giulio  United Kingdom
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Oh, yes!

I would be interested in two full sets (two F4 amps).

Thanks
Giulio
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Old 20th June 2007, 04:15 PM   #3
Jaac is offline Jaac  Netherlands
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Conrad offers them for 1,70 if you buy more then 25 and i thought that you can get them by nedis for around 1,30 for the irfp240 model

conrad

With a bit of Doing It Yourself you've got matched pairs
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Old 20th June 2007, 04:25 PM   #4
steenoe is offline steenoe  Denmark
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Quote:
Conrad offers them for 1,70 if you buy more then 25 and i thought that you can get them by nedis for around 1,30 for the irfp240 model
How many do you plan on buying to get the matched triples? I am sure that Tarasque's offer is quite sound and healthy! You can buy 25 pcs tubes at a lesser price a pcs, but what to do with the excess?? Come to think of it , having matched loads of fet's, I think Tarasque's price is really cheap! Who wants to get stuck with a load of unmatchable fets?? IMO, the price is too low!
Matched pairs wont cut it, you need triples!
Steen.
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Old 20th June 2007, 04:39 PM   #5
Jaac is offline Jaac  Netherlands
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use them for powersupply's and other things, and yes of course they are cheap for matched pairs but you see so much group buy's and package deals these days most people only screw to gether the components i think that's not DIY.
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Old 20th June 2007, 04:52 PM   #6
giulio is offline giulio  United Kingdom
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yes of course they are cheap for matched pairs but you see so much group buy's and package deals these days most people only screw to gether the components i think that's not DIY.
Where should we draw the line? Winding toroids, extruding heasinks...?
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Old 20th June 2007, 05:35 PM   #7
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Old 20th June 2007, 05:38 PM   #8
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Quote:
Originally posted by Jaac
[B]Conrad offers them for 1,70 if you buy more then 25 and i thought that you can get them by nedis for around 1,30 for the irfp240 model
I can get IRFP240 for 0,89 and the IRFP9240 for 1,01. These are all mixed production codes and from unknown sources.
To get fets from the same wafer and from confirmed sources is a different ballgame and a way different price!
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Old 20th June 2007, 05:38 PM   #9
steenoe is offline steenoe  Denmark
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He-he.... Do whatever you want, I match my own!! If I didnt, I would buy from Tarasque Cant beleive its so hard to comprehend
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Old 20th June 2007, 06:24 PM   #10
giulio is offline giulio  United Kingdom
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You draw the line wherever You choose.
I thought so, Papa.

Most grateful for your generosity (and awed by the attitude)!

Giulio
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