PSN-L Email List Message

Subject: computer power supply
From: cparker@............... (Christian Parker)
Date: Wed, 5 Jan 2000 08:56:03 -0700 (MST)

Has anyone here ever tried to use the power supply from an old PC to power
their seismometer electronics?  I have one laying around so I was going to
give this a try.  The power supply outputs +12vdc and -12vdc from one of the
connectors that normally connects to the motherboard.  The pinouts of this
connector are as follows:

Pin   Name    Color    Description 
1     PG      Orange   Power Good, +5 VDC when all voltages has stabilized.
2     +5V     Red      +5 VDC (or n/c) 
3     +12V    Yellow   +12 VDC 
4     -12V    Blue     -12 VDC 
5     GND     Black    Ground
6     GND     Black    Ground

I'm wondering if this power is suitable for powering op amps?

Christian Parker
Boulder, CO


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Larry Cochrane <cochrane@..............>