can I use this transformer to power the opamp based preamp?

[zome]

I'm not sure what the label means. It says 22V----0----22V. (please see picture)

Does it mean already it has 22V and -22V?

If it's not (I'm a newbie, as you can see), is it possible to make it + and - rails? (More precisely I want +15 and -15, I guess I can use 7815 and 7915 voltage regulator?)

An externally hosted image should be here but it was not working when we last tested it.

thank you!

 

[454Casull]

The 22-0-22 is too much for +/- 15V, while the 12-0-12 is too little. You can use the 12-0-12 winding with 7812/7912.

 

[cbdb]

Not to mention its a 300 watt transformer when 30 would probably be overkill.

 

[Minion]

You can use the 12v-0v-12v to get +/- 15v Unregulated , it will probably be closer to +/-17v but many Opamps can handle +/-18v , but 12v regulators would be better .....

The transformer would be good for a Dual chip Gainclone with a Preamp and/or active EQ section ......