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Old 12th November 2009, 01:13 PM   #401
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Default pcb boards

I received my boards today. Thanks to Tea-bag, Salas, crt and everyone involved. The boards are beautiful.
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Old 12th November 2009, 08:49 PM   #402
mr.duck is offline mr.duck  United Kingdom
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Would this design be suitable for use as a headphone amp?

Assume that volume will not be a problem.
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Old 12th November 2009, 08:54 PM   #403
Salas is offline Salas  Greece
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No.
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Old 12th November 2009, 09:05 PM   #404
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Default jfets?

Is anyone selling a set of matched jfets 2sk170 for the b1 buffer?

I could use a few.
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Old 12th November 2009, 09:39 PM   #405
Cobra2 is offline Cobra2  Norway
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Any common subs for the BC 517 ?

Arne K
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Old 12th November 2009, 09:51 PM   #406
Salas is offline Salas  Greece
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BCX38C, MPSW45A and 2N6426. Watch out since their pin order is EBC when 517's is CBE as you face the flat front side. You got to place them subs against PCB's 517 orientantion.
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Old 13th November 2009, 01:36 AM   #407
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Do any of you know of a good USA source for R-core transformers? I would like to use one in my build.

Thanks,
Bill
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Old 13th November 2009, 06:02 AM   #408
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Quote:
Originally Posted by merlin2069er View Post
Is anyone selling a set of matched jfets 2sk170 for the b1 buffer?

I could use a few.
i have many quantities of 2sk170 quad matched.i also have 8pieces of 2sk389
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Old 13th November 2009, 08:07 AM   #409
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by merlin2069er View Post
Is anyone selling a set of matched jfets 2sk170 for the b1 buffer?

I could use a few.
the B1 does not need matched jFETs.
Just select similar Idss. Within 5% would be usable, 2% may improve performance.
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Old 13th November 2009, 06:45 PM   #410
adamus is offline adamus  United Kingdom
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my bag of leds are very tightly matched.. so tightly i cant piece them together to get the 5.4v.

all the led's measure 1.90 v @ 6ma.

do i need to get more LED' - how critical is the 5.4 v and 9.6v?
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