From: Winfield Hill
Subject: Re: dynamic DC source
Date: 10 Oct 2002 02:37:11 -0700
Organization: Rowland Institute
X-Newsreader: Direct Read News 2.98
>> Lizard wrote...
>>>> ... Another nice Agilent development in the last
>>>> 5 years: DC dynamic sources. These have 12-bit D-A voltage and
>>>> current-mode programming along with sensitive 16-bit A-D metering.
>>>> [and lots of panel digits] With dual-range current monitoring
>>>> that works over a million-to-one range and has 15us measurement
>>>> rates. Try that with your classic HP power supply. :-)
>>> ... What I'm looking for is something that will do what I need for
>>> something less than the price of an arm and a leg. Maybe less than
>>> a kilobuck would be my price range. Or else I'd have to butcher up
>>> a PS and void the warranty to install a Bourns Helipot in the front
>>> panel, and it would look awfully strange having a DVM bolted/strapped
>>> to the side.
>> We got Dynamic Sources for just over $200 on eBay, so perhaps that
>> can be your easy answer. Search for 66312A, etc. All the manuals
>> for these are available at Agilent's web site. If you see some 230V
>> models offered, that's OK, because the manual explains how to change
>> jumpers for 120 or 230V ac. One issue, these supplies are 17" deep.
> I think I have a problem, maybe someone could help me out of this
> revoltin' predicament. I got on eBay at the URL above and tried to
> "buy it now". ... so I tried to register. ...
You could simply skip eBay and get a 66312A power supply directly from
them, contact Marc LoPonte, firstname.lastname@example.org Marc is at the
TechRecovery division of Certified Sales, One Bay Avenue, Warwick, RI
02886, Phone 401-732-6300.
A second source of 66312A units may be Michael at KW Tech Solutions,
The $195 to 225 price range is right for both these guys. But first
read about the 66312A supplies at Agilent. Download the manuals, etc.
I've been happy with surplus stuff I got from both companies. Lots of
these beautiful power supplies are available right now at low prices
because many telecom companies have gone bust or massively downsized.
In addition, the latest variant of DC Source technology features
dynamically-adjustable output impedance, to better simulate a real
battery, making the 3 to 5-year-old power supplies obsolete. :-)