Yahoo Groups archive

MOTM

Index last updated: 2026-04-03 01:33 UTC

Message

Re: MOTM-101 output level and a question about mounting.

2005-10-26 by gregorykjar

Thanks Paul, I´ll check everything again tonigth.

Gregory

--- In motm@yahoogroups.com, "Paul Schreiber" <synth1@a...> wrote:
>
> a) you can't measure the White Noise output with a DVM. For one, 
the noise 
> bandwidth is like 250Khz, and your DVM goes to 500Hz if you are 
lucky. Second, 
> by definition white noise has an *average value of zero volts*. In 
fact, 1 
> 'figure of merit' of just how "white" the white noise is, is to 
measure it with 
> an *averaging* (not RMS) meter. The closer to zero, the 'better 
the noise' :)
> 
> b) the S/H uses *pink noise* internally, through the switched 
jack. If you did 
> not wire the switching jack correctly, this would explain it.
> 
> c) do you have approx 8V pk-pk of Pink Noise at the Pink Out jack? 
If not, then 
> there is an error with the Pink Noise filter.
> 
> Paul S.
>

Attachments