[sdiy] supply voltages and signal levels

[Ian Fritz]

At 11:29 AM 5/29/05, Roy J. Tellason wrote:
>I see the supply voltage issue coming up in the OTA thread,  and in much of
>this stuff that I've encountered it seems that 15V dual supplies are the
>norm.  Or maybe 12V,  or even 10V,  in some stuff.
>
>I also see signal levels quite commonly being around 10V P-P.
>
>Is this really necessary?  Are we looking at things degrading that much if we
>were instead operating at "line level" or similar?
>
>Maybe I'm just missing something here...

The larger signal voltages ensure that you can use unshielded banana leads. :-)

At line level shielded leads become a good idea.