[volt-nuts] Back to voltage was Re: Precision current source

[Marv Gozum @ JHN]

Sorry folks, my email sent this prematurely.

To clarify this sentence:

At 03:00 PM 8/23/2010, Marv Gozum @ JHN wrote:
>Thus, if a less stringent 30 ppm or more suffices for one's need, 
>why won't something like Geller's board work, and thus save the 
>owner a lot of money?  However, it must be characterized just like 
>Fluke does for the 732.  Empirically, such a home brew could rival a 
>more expensive standard up to a ppm per time period, limited 
>circumstances that a Fluke 732 cannot contend with given its 
>intended use thus requiring the extra electronics, housings, 
>redundancy and overall, cost.  Such circumstances may not even be 
>related to stabilizing the volt, such as passing UL, CSA, IEC safety 
>requirements, which add to the cost of the device.


It should read as:

Thus, if a less stringent 30 ppm or more suffices for one's need, why 
won't something like Geller's board work, and thus save the owner a 
lot of money?  However, it must be characterized just like Fluke does 
for the 732.

Empirically, such a home brew could rival a more expensive standard 
up to a ppm per time period, excluding circumstances that the a Fluke 
732 design was built to include.  For example, a home brew need not 
require its own dedicated battery backup, lab grade AC supply, or 
built to safety standards that would pass UL, CSA or IEC safety 
requirements, which add to the cost of the device.




Best Wishes,


Marv Gozum
Philadelphia