Sjöström Audio DIY forum

Projects => Headphone amplifiers => Topic started by: goldkenn on March 19, 2011, 04:08:25 PM

Title: BF471/BF472 in QRV01
Post by: goldkenn on March 19, 2011, 04:08:25 PM
Hi P-A,

I just found maybe the SMD type BF722/BF723 maybe the best replcement of BF471/BF472, and could easily order from Farnell.

BF722(Farnell order number: 1757916)
http://www.nxp.com/documents/data_sheet/BF720_722.pdf

BF723(Farnell order number: 1757917)
http://www.nxp.com/documents/data_sheet/BF723.pdf

Check if I am right, and I hope this could help you finish the QRV01 article when you are free.
Title: Re: BF471/BF472 in QRV01
Post by: peranders on March 19, 2011, 04:16:51 PM
Suggested types are the same transistor except for package, I'm pretty sure.