Hello,
I want to make this little amplifier: http://runoffgroove.com/ruby.html
However, I added an LED indicating power on and I also would like to be able to connect it to external power supply (transformer) instead of a 9V battery.
The transformer I have here is rated for 9V and 500mA. Should I have further precautions with this circuit? http://i195.photobucket.com/albums/z259/Pongidae/cicuit.jpg
I didn't find in J201 datasheet an absolute maximum value for drain-source current. Isn't it important?
Thanks in advance for your attention!
I want to make this little amplifier: http://runoffgroove.com/ruby.html
However, I added an LED indicating power on and I also would like to be able to connect it to external power supply (transformer) instead of a 9V battery.
The transformer I have here is rated for 9V and 500mA. Should I have further precautions with this circuit? http://i195.photobucket.com/albums/z259/Pongidae/cicuit.jpg
I didn't find in J201 datasheet an absolute maximum value for drain-source current. Isn't it important?
Thanks in advance for your attention!