Re: Noise leaking from PSU to mic amp

From: Winfield Hill (Winfield_member_at_newsguy.com)
Date: 10/12/04 

Date: 12 Oct 2004 04:57:23 -0700

martin griffith wrote...
>
> Very difficult to diagnose ( well for me) on the net, but try
> reading AN70 by Jim Williams on the Linear website, it has a good
> section on selecting inductors, and sniffer for locating nasties

 The small magnetic-field sniffer probe section in Jim's appnote is
 a meaty and excellent source of information. It's appnote E101 by
 Bruce Carsten Associates, Inc., 6410 NW Sisters Place, Corvallis,
 Oregon 97330 541-745-3935, http://www.bcarsten.com/ You can make
 your probes from the drawings he provides, but they sell several
 versions for $300 to $500, http://www.bcarsten.com/?page=probes
 http://www.bcarsten.com/?page=hfield Looks like good investments. 

-- 
 Thanks,
    - Win
 (email: use hill_at_rowland-dotties-org for now)