[time-nuts] Geller V std

Richard Moore richiem at hughes.net
Sat Nov 29 08:32:18 UTC 2008

> Message: 3
> Date: Fri, 28 Nov 2008 20:51:12 -0800
> From: "WarrenS" <warrensjmail-one at yahoo.com>
> Subject: Re: [time-nuts] Voltage standards
> To: "Discussion of precise time and frequency measurement"
> 	<time-nuts at febo.com>
> Message-ID: <029701c951de$1adadb70$6401a8c0 at WSOffice>
> Content-Type: text/plain;	charset="iso-8859-1"
> Just to add my experiences and throw in another two cents worth.
> I live in California,  and a few years back I did some experiments
> with Geller on the East coast shipping back and forth some of his 10V
> References in the regular mail that I had added a simple 1 transistor
> 1st order Temperature compensation circuit to some of his selected  
> aged
> units and proved to my satisfaction that better than 2PPM transfer
> accuracy was obtained across the country. In house I can consistently
> get better than 1 PPM transfer with the same units. Of course there
> are more accurate ways, but for us cheap guys It sure beats the $500
> I heard Fluke charges to do their underlying Fluke 732B calibration.
> WarrenS
> *********************

Warren, could you or would  you share that little mod with us?

Dick Moore

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