building firstwatt f1 - questions on parts

[Netlist]

55-60° is a bit high and a small silent fans will work wonders.
Water cooling works fine too, some run them with alcohol cooled devices during the winter.

/Hugo

 

[choariwap]

bad luck, the supplier ran out of IRFP240s.. they are suggesting IRFP240PBF which is the lead free version.

will this be ok as an alternative? i've checked the net and their spec sheets are identical (the exact same file)

Thanks!

 

[gl]

Thay are the same. The tinning on the pins will be different but the internal die (the important part) will be exactly the same.

Graeme

 

[Adams_Leo]

Compromise bias current . . . :rdevil:
The highly efficient corns still welcome lower current !!!

Where is this :rdevil: ????????????
Am I still drunk ~~~ ???

Good luck!!!

Hi Jh,I want to build the F1 power amp and I am in China.I tried to send a mail to you,but you do not wish to receive emails.Could you send a message to me.I will try to contact with you.Do you mind....?

Regards,
Leo

 

[jh6you]

Hi Leo,

Click here to email me

Regards

JH