Hi every one , I got this DIY preamp installed in an old (78) stereo reciever .
Uploded the schema pic and Ltspice file , to be easy to test and verify .
The power source is a single +13VDC , I made a virtual ground as you can see .
I have IC socket so I can change easily to another OPAMP ,
I have here ne5532 , jrc5532 , tl071 , jrc4558 , i tried them all but not sure which one will be the best .
Do you think I should do some changes to the schema ? which opamp do you think will be the best ?
Is it posible to calculate the distorion ?
Late edit , this is original scheam more clearly .
[IMGDEAD]http://s32.postimg.org/3uycsa4f9/2250b_pic.jpg[/IMGDEAD]
Uploded the schema pic and Ltspice file , to be easy to test and verify .
The power source is a single +13VDC , I made a virtual ground as you can see .
I have IC socket so I can change easily to another OPAMP ,
I have here ne5532 , jrc5532 , tl071 , jrc4558 , i tried them all but not sure which one will be the best .
Do you think I should do some changes to the schema ? which opamp do you think will be the best ?
Is it posible to calculate the distorion ?
Late edit , this is original scheam more clearly .
[IMGDEAD]http://s32.postimg.org/3uycsa4f9/2250b_pic.jpg[/IMGDEAD]
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