RE: Question about Audio Reg Board -5v

Some versions of the 7905 fall badly out of regulation under no-load
conditions. I think the ones that Bob Roberts was selling at one point fell
into that category. I've seen such 7905's put out -12V under no-load.

Alex

-----Original Message-----
From: owner-rasterlist@vectorlist.org
[mailto:owner-rasterlist@vectorlist.org] On Behalf Of Christopher X.
Candreva
Sent: Tuesday, July 01, 2008 10:12 AM
To: Rasterlist
Subject: Re: RASTER: Question about Audio Reg Board -5v

On Mon, 30 Jun 2008, Matt Rossiter wrote:

> be fine. I replaced the 7905 voltage regulator. Then I swapped in
> another audio Reg board and got the same thing. Why would I be
> getting -12v instead of -5v? It almost seems like this is normal.

Are you sure you are measuring the correct line ? Try the direct output of
the reg, the test point (if there is one). My guess is you are on the -12v
line.

==========================================================
Chris Candreva -- chris@westnet.com -- (914) 948-3162
WestNet Internet Services of Westchester
http://www.westnet.com/
---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com

---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com
Received on Tue Jul 1 10:18:46 2008