Re: Noiselevel with 150 ohm termination

["Dan Dugan" dandugan_1999]

>       can you post the exact wiring for the 150 ohm terminator on a
>balanced line ?

 From pin 2 to pin 3.

>       is this the most acceptable solution for comparing noise in
>different preamps ?

Works for me.

>       but how to relate the measured noise if we don't know exactly the
>total applied gain ?
>            (the last question can be read this way: how to measure
>the total applied gain ?

To measure the gain, apply a small signal to the input and measure
what comes out. Complications include presenting an appropriate input
impedance (150-ohm source in the pad) and accounting for the effect
the loading of the preamp input has on the pad (-measure- the small
signal on the source resistor, don't assume).

Where there is no analog output, like an MD recorder, I dunno!

-Dan Dugan