need ZTX499 transistor or EQ

Jempie · 25th July 2012, 02:59 PM

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.

ZTX449?

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

hereby the pictureztx499.JPG

frank1 · 03:18 PM

http://www.google.com/url?sa=t&rct=j...iJhDyw&cad=rja

Digikey link:
http://www.digikey.co.uk/product-det...TX449-ND/92532

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!
NS

25th July 2012, 02:59 PM	#1
Jempie diyAudio Member Join Date: Jan 2008	need ZTX499 transistor or EQ need ZTX499 transistor or EQ any suggestion

31st July 2012, 03:15 PM	#6
frank1 diyAudio Member Join Date: Apr 2006 Location: Devon UK	ZTX449 Datasheet http://www.google.com/url?sa=t&rct=j...iJhDyw&cad=rja Digikey link: http://www.digikey.co.uk/product-det...TX449-ND/92532 Last edited by frank1; 31st July 2012 at 03:18 PM.

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31st July 2012, 12:59 PM	#2
i-s diyAudio Member Join Date: Nov 2003 Location: UK	Are you sure 499 is correct? I can't find any current or obsolete listing for that part. ZTX449?

31st July 2012, 01:11 PM	#3
Jempie diyAudio Member Join Date: Jan 2008	Yes i'm correct it's use in an anthem pre2

31st July 2012, 01:49 PM	#4
i-s diyAudio Member Join Date: Nov 2003 Location: UK	Can you get a photograph of the part? I will see what I can find out.

31st July 2012, 03:01 PM	#5
Jempie diyAudio Member Join Date: Jan 2008	hereby the pictureztx499.JPG

1st August 2012, 07:56 AM	#7
i-s diyAudio Member Join Date: Nov 2003 Location: UK	As frank suggested, that is indeed ZTX449. They are still available.

2nd August 2012, 07:06 AM	#8
Jempie diyAudio Member Join Date: Jan 2008	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

2nd August 2012, 08:22 PM	#9
noSmoking diyAudio Member Join Date: May 2010 Location: Texas	sub in a BC550 and see if it fixes it,I have interchanged them before with no problems in a F5, Good luck! NS