Are these transistors counterfeit?

geaugafletcher · 17th January 2007, 04:05 AM

I bought a pair of these ostensibly Motorola transistors to replace one with broken legs in an Audire Model 2 amp. There are a number of differences that make me think the eBay seller might've sold me a pair of fakes.

Is there any easy way for an inexperienced hobbiest to tell, other than obvious differences in appearance?

Thanks for any help!

geaugafletcher · 17th January 2007, 04:09 AM

and a picture of the back sides

Geek · 17th January 2007, 05:25 AM

Looks older, but legit to me.

Though I can say that all of those Motorola things I have don't have tinned pins.

Minion · 17th January 2007, 05:36 PM

They look Fine to me...Most of the Fakes I have seen have a Much smaller surface area than the originals so they will burn out more quickly as they can not disipate as Much heat but the Internal circuitry seems to be the same in Most of the fakes I have seen, you just have to use Larger heatsinks....

I think you should be Fine with those Transistors.....

Cheers

geaugafletcher · 18th January 2007, 03:36 PM

Thanks guys, I appreciate the comments.

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17th January 2007, 05:25 AM	#3
Geek diyAudio Member Join Date: Sep 2004	Looks older, but legit to me. Though I can say that all of those Motorola things I have don't have tinned pins.

17th January 2007, 05:36 PM	#4
Minion diyAudio Member Join Date: May 2006	They look Fine to me...Most of the Fakes I have seen have a Much smaller surface area than the originals so they will burn out more quickly as they can not disipate as Much heat but the Internal circuitry seems to be the same in Most of the fakes I have seen, you just have to use Larger heatsinks.... I think you should be Fine with those Transistors..... Cheers

18th January 2007, 03:36 PM	#5
geaugafletcher diyAudio Member Join Date: Feb 2006	Thanks guys, I appreciate the comments.