[time-nuts] Random Walk Noise experiment

lists at lazygranch.com lists at lazygranch.com
Sat Feb 12 15:18:35 UTC 2011


Wouldn't a zener make a better noise source. You can also breakdown the emitter-base diode, but watch the current. It can't take more than say 100uA. 

-----Original Message-----
From: Magnus Danielson <magnus at rubidium.dyndns.org>
Sender: time-nuts-bounces at febo.com
Date: Sat, 12 Feb 2011 14:27:50 
To: <time-nuts at febo.com>
Reply-To: Discussion of precise time and frequency measurement
	<time-nuts at febo.com>
Subject: Re: [time-nuts] Random Walk Noise experiment

On 12/02/11 14:16, ehydra wrote:
> Hi all!
>
> I friend of mine wants to construct an experiment for students for
> studying random walk noise.
>
> What is the best good available transistor or other parts? All parts he
> tested where just to good.
>
> Thank you!

Use a standard transistor or diode. Run a largish DC current through it. 
Use an op-amp to amplify the noise.

Ćheers,
Magnus

_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.


More information about the time-nuts mailing list