Dual Polarity Power Supply

[shaiqbashir]

Hi guys!

well! i m trying to build a power supply in order to power up my operational amplifier circuit which requires around 12-15 V and 245mA of current!

will this circuit be suitable for that!

http://www.electronics-lab.com/projects/power/015/index.html

here is its circuit diagram:



now the description given about this circuit that the voltage are adjustable from 0-15 V but what would be the current output of this circuit?

I want a current output of 245mA.

pplz help me as soon as possible!

Thanks in advance!

[audioguru]

Hi Shaiq,
Your opamp mic preamp with LM380 power amp project doesn't need a dual-polarity supply and doesn't need a variable voltage supply. Just use an AC to 12VDC/0.5A adapter to power it.