OPA 627 BP, Need Help Please

[Pocoyo]

I want to install the real OPA 627 BP to my preamp and my DAC
Maybe I build someday but I want to install just real OPA 627 BP
Can you help me to make sure all my OPA 627 BP is OK ?

I bought some OPA 627 BP, First time I want to buy 5 pcs Opa 627 BP
from Kevin Tobiassen for my Preamp 1 pcs Opa 627 BP price is US$ 9
Than my friend want to build DAC so he ask me to buy 5 pcs Opa 627
BP too so we can safe the shipment cost

When it arrive, I get 2 version Opa 627 BP with different version

When I read about EC Design DAC, so I think, why don’t I start to
collect some component if I cancel the project so I can sell it later.

When I look aaf posting in trading post with the same price US$ 9 so
I start to order Opa 627 Bp than the Opa arrive on August 17, 2007.

Now I got 3 version of OPA 627 BP

[Pocoyo]

I buy this OPA 627 BP ( version 1 ) from KEVIN TOBIASSEN
One type with the gold serial number “67W1K88” and have little
dot in beside the serial and circle below with text “THAILAND”


Trade (10) BB OPA627BP for (1) selector switch


This is OK ? I Need your INPUT, COMMENT & INFO
Please Help Me

[Pocoyo]

I buy this from KEVIN TOBIASSEN
One type with the white serial number “45ZNKC7”and have circle
on the bottom with text “PHILS J20”


http://www.diyaudio.com/forums/show...&threadid=98837


This is OK ? I Need your INPUT, COMMENT & INFO
Please Help Me

[Pocoyo]

I buy this from A’af
One type with the gold serial number "05169111"
and have no circle in the bottom, just flat bottom

[Pocoyo]

Hiii Guys i realy need help from you
to make sure where the real OPA 627 BP
Thanks A LOT

For A'af OPA 627 BP you can look in
FS: assorted NOS DAC part

This is OK ? I Need your INPUT, COMMENT & INFO
Please Help Me

[KP11520]

Hello,

Try TI's (Texas Instrument's) website: htp://www.ti.com/

Maybe you can ask customer service to validate the op amps authenticity. No place better to hear it from than from the manufacturer! But you will probably have to wait until Monday for an answer.

Good Luck!

Regards//Keith

[Pocoyo]

thanks a lot KP

[jarthel]

the TI opa627BP that I got from mouser has the white lettering like those in the middle photo.

BUT the other ones could be old-style OPA627 before TI acquired BB.

[Pocoyo]

Hii Jarthel

Thanks a lot for your info
I got confirmation from TI too about 45ZNKC7
Thanks for Kevinlee about this

If i look in TI website theres a lot of type opa 627bp
I hope the other is ok

I will test them someday