BC547B are european transistors. B.G. Micro has some available on
page 6 of their catalog ($0.12 ea or 100/$7.95). You'll find them at
www.bgmicro.com The North American counterparts for the BC547B are
2N3904 or 2N4401

Regards,
Adi

>   Hello everybody:
>
>    I need to purchase a couple of BC547B Motorola transistors.  I check
> with Digi-Key and Mouser Electronics and they does not have it.
> Sugestions are welcome
>
> Thanks in advance,
> Efrain Torres
>