### Counterfeit transistors - Page 6

Tarzan · 7th February 2008, 01:25 PM

Yep, I think it is.
I had a quick look on ebay to find out if most of the components mentioned in the 30+ year old document are available.
Well the mercury wetted relay is available, as is the pulse generator.
The other components like the semicons can be sustituted by others.
Some parts as the psu can be simplified by a LM317 etc...

But I start a new tread this evening.

Let's declare war to the counterfeit transistors...

Tarzan

small_boy · 7th February 2008, 02:32 PM

rebuild the good old testset with new and modern components. I think thats a realy good idea.

Tarzan · 7th February 2008, 05:46 PM

Hi all,

Here is the new tread:

http://www.diyaudio.com/forums/showt...36#post1422436

Thanks for the support.

Tarzan

viktor1986 · 6th August 2008, 11:17 AM

Does anybody know who is manufacture of this transistors?I think that 2N5551 is manufactured by ON but who made second one?

weissi · 6th August 2008, 08:39 PM

I know continental semicon (india)

viktor1986 · 6th August 2008, 08:42 PM

Thank's for information.

Are you 100% sure?

6th August 2008, 11:17 AM	#54
viktor1986 diyAudio Member Join Date: Jun 2005 Location: Belgrade, Serbia	! Does anybody know who is manufacture of this transistors?I think that 2N5551 is manufactured by ON but who made second one? __________________ Pa mislim sta reci!

6th August 2008, 08:39 PM	#55
weissi diyAudio Member Join Date: Sep 2002 Location: Austria	I know continental semicon (india) __________________ regards / servus

6th August 2008, 08:42 PM	#56
viktor1986 diyAudio Member Join Date: Jun 2005 Location: Belgrade, Serbia	! Thank's for information. Are you 100% sure? __________________ Pa mislim sta reci!

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7th February 2008, 01:25 PM	#51
Tarzan diyAudio Member Join Date: May 2004 Location: Genk	Yep, I think it is. I had a quick look on ebay to find out if most of the components mentioned in the 30+ year old document are available. Well the mercury wetted relay is available, as is the pulse generator. The other components like the semicons can be sustituted by others. Some parts as the psu can be simplified by a LM317 etc... But I start a new tread this evening. Let's declare war to the counterfeit transistors... Tarzan

7th February 2008, 02:32 PM	#52
small_boy diyAudio Member Join Date: May 2005 Location: in Germany	rebuild the good old testset with new and modern components. I think thats a realy good idea.

7th February 2008, 05:46 PM	#53
Tarzan diyAudio Member Join Date: May 2004 Location: Genk	Hi all, Here is the new tread: http://www.diyaudio.com/forums/showt...36#post1422436 Thanks for the support. Tarzan

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