Alternative MOSFET:s in Aleph amps? - diyAudio
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Old 12th November 2001, 07:57 PM   #1
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I'm interested in building the Aleph3 amp. However, my local electronics store (I live in Sweden) does not carry any of IRF240, IRF244 or IRF9610.
The closest I can get is IRFP250 and IRF9620. These appear to be uprated versions of the recommended mosfets, but some figures like input capacitance is a little higher.
Has anybody tried these?
Thanks in advance,
Claes
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Old 12th November 2001, 08:19 PM   #2
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You might want to try going thru the posts in the Pass Labs section of DIYaudio titled ' transistor '. IRFP250 can be used as a possible substitute.

transistor ?



[Edited by cp642 on 11-12-2001 at 03:22 PM]
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Old 12th November 2001, 09:29 PM   #3
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Ok, thanks!
But I'm still wondering about the IRF9620 vs. IRF9610.
Claes
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Old 13th November 2001, 03:07 PM   #4
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It's No problem at all, I use it in my Aleph 3 also.
I take 10 of them, and get 4 matched for differential pair.
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Old 13th November 2001, 06:47 PM   #5
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Great!
Thanks alot!
Claes
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