Noise Generator - Any Recommendations?

[airtech]

I've been trying to align this ampex mm1100 that I've been working on using my daw, but I'm not sure the output of the convertor is at +4dbm's. I'm thinking that I might need a designated oscillator for this. Any recommendations as far as a brand (preferrably at a lower cost) or as far as using my current ad8000 and pro tools to generate a +4dbm signal to my tape machine?

 

[PRR]

Voltmeter. +4dBm is 1.24 volts.

 

[airtech]

So just take the voltmeter to ground and the +pin and it will tell me the volts? I'll try that tomorrow and see what the output of my apogee is really putting out. Thanks for the tip.

 

[Crusty2]

You want to go between pins 2 and 3.

Because of loading, measure with the machine plugged in (you can plug a "Y" cord in and measure on the open connector).

 

[airtech]

Alright. So take the y-cable off the outputs of my ad8000's and measure there b/n pin 2 and 3 and have the other end connected to the mm1100. I'll try that.

 

[pucho812]

PRR I have always known +4dbm = 1.228 but anyway if you want some good noise try my mother in law. :green: