galneweinhaw
New Member
Hi,
I am trying to build a circuit w/ a TL072 IC. It requires a +, - and ground.
If I want to put my little circuit in a box how do I get this +/-/gnd without a big seperate power supply?
The way I know of is 4 9V batteries (+18V/-18V/gnd).... a bit cumbersome.
Is there an easy way to get +/-/gnd from an off the shelf plug in transformer?
Thanks, any help is greatly appreciated.
PS: this forum looks sweet, I can wait to get a chance to browse around a little more, esp. the projects.
I am trying to build a circuit w/ a TL072 IC. It requires a +, - and ground.
If I want to put my little circuit in a box how do I get this +/-/gnd without a big seperate power supply?
The way I know of is 4 9V batteries (+18V/-18V/gnd).... a bit cumbersome.
Is there an easy way to get +/-/gnd from an off the shelf plug in transformer?
Thanks, any help is greatly appreciated.
PS: this forum looks sweet, I can wait to get a chance to browse around a little more, esp. the projects.