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Jempie 25th July 2012 02:59 PM

need ZTX499 transistor or EQ
need ZTX499 transistor or EQ

any suggestion

i-s 31st July 2012 12:59 PM

Are you sure 499 is correct? I can't find any current or obsolete listing for that part.


Jempie 31st July 2012 01:11 PM

Yes i'm correct it's use in an anthem pre2

i-s 31st July 2012 01:49 PM

Can you get a photograph of the part? I will see what I can find out.

Jempie 31st July 2012 03:01 PM

1 Attachment(s)
hereby the pictureAttachment 293989

frank1 31st July 2012 03:15 PM

ZTX449 Datasheet

Digikey link:

i-s 1st August 2012 07:56 AM

As frank suggested, that is indeed ZTX449.

They are still available.

Jempie 2nd August 2012 07:06 AM

Hi everybody thanks..

now i still have an problem, all Anthem Pre's has hum een when the volume is
zero. you still hearing hum on the background. i hate hum.
there is nothing wrong i have three whit the same problems
does anyone has an solution for this problem, or is the best way to sell and
buy a other one

noSmoking 2nd August 2012 08:22 PM

sub in a BC550 and see if it fixes it,I have interchanged them before with no problems in a F5,
Good luck!

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