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Author Topic: t2  (Read 4527 times)

Andreas

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t2
« on: 19.01.2003 at 12:12:48 »
Hi all,

after I bought the transistor t2 for yampp7 (wich is in list as bc817), I saw it as a bc847 in the schematic. Wich transistor is the right one?

« Last Edit: 01.01.1970 at 01:00:00 by 1080169200 »
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Jesper Hansen

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Re: t2
« Reply #1 on: 19.01.2003 at 14:42:58 »
It's not important. The BC817 is often used as the the SMD version of the BC847 (or 547).

/Jesper
« Last Edit: 01.01.1970 at 01:00:00 by 1080169200 »
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Andreas

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Re: t2
« Reply #2 on: 20.01.2003 at 11:06:06 »
Ok, thank you! :)
« Last Edit: 01.01.1970 at 01:00:00 by 1080169200 »
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rollo

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Re: t2
« Reply #3 on: 22.06.2008 at 12:17:15 »
Hi i'm planning to build the yampp7. After looking on the Homepage and studying the shematics, i've got a question:


Whats the reason for installing the transistor T2?

If i do not want to install the backlight  theres no need to connect the atmega with J2, and if i want to install the backlight then i should remove T2 (in regard to Eric Guérard's Manual). So i can't see any reason for installing the transistor?

So if someone could explain to me why to install this trancistor it would be very kind.
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