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Discussion of precise voltage measurement

JRL VDR-106/7 Kelvin-Varley Divider Manual

Robert Atkinson

Tue, Nov 15, 2011 9:19 PM

Hi all,
I've just purchased and scanned the manual for the Julie Research Labs VDR-106/7 Kelvin-Varley Divider Manual. This also covers the VDR-307 and has an application note and letter from NBS about checking it to 0.1ppm with a set of matched resistors. The 106/7 is a bit of a beast. 0.1ppm resolution with 1ppm linearity for 5 years. It uses JRL's patented untrimmed resistors to acheive this.

The manual is 300dpi and OCR'd so about 5Mb in size. If anyone want's a copy let me know. Or perhaps Didier would like to host it.

Robert G8RPI.

Hi all, I've just purchased and scanned the manual for the Julie Research Labs VDR-106/7 Kelvin-Varley Divider Manual. This also covers the VDR-307 and has an application note and letter from NBS about checking it to 0.1ppm with a set of matched resistors. The 106/7 is a bit of a beast. 0.1ppm resolution with 1ppm linearity for 5 years. It uses JRL's patented untrimmed resistors to acheive this. The manual is 300dpi and OCR'd so about 5Mb in size. If anyone want's a copy let me know. Or perhaps Didier would like to host it. Robert G8RPI.

shalimr9@gmail.com

Wed, Nov 16, 2011 4:14 AM

Yes, send it my way, I'll gladly host it.

Didier KO4BB

Sent from my BlackBerry Wireless thingy while I do other things...

-----Original Message-----
From: Robert Atkinson robert8rpi@yahoo.co.uk
Sender: volt-nuts-bounces@febo.com
Date: Tue, 15 Nov 2011 21:19:38
To: volt-nuts@febo.com volt-nuts@febo.com
Reply-To: Robert Atkinson robert8rpi@yahoo.co.uk,
Discussion of precise voltage measurement volt-nuts@febo.com
Subject: [volt-nuts] JRL VDR-106/7 Kelvin-Varley Divider Manual

The manual is 300dpi and OCR'd so about 5Mb in size. If anyone want's a copy let me know. Or perhaps Didier would like to host it.

Robert G8RPI.

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Yes, send it my way, I'll gladly host it. Didier KO4BB Sent from my BlackBerry Wireless thingy while I do other things... -----Original Message----- From: Robert Atkinson <robert8rpi@yahoo.co.uk> Sender: volt-nuts-bounces@febo.com Date: Tue, 15 Nov 2011 21:19:38 To: volt-nuts@febo.com<volt-nuts@febo.com> Reply-To: Robert Atkinson <robert8rpi@yahoo.co.uk>, Discussion of precise voltage measurement <volt-nuts@febo.com> Subject: [volt-nuts] JRL VDR-106/7 Kelvin-Varley Divider Manual Hi all, I've just purchased and scanned the manual for the Julie Research Labs VDR-106/7 Kelvin-Varley Divider Manual. This also covers the VDR-307 and has an application note and letter from NBS about checking it to 0.1ppm with a set of matched resistors. The 106/7 is a bit of a beast. 0.1ppm resolution with 1ppm linearity for 5 years. It uses JRL's patented untrimmed resistors to acheive this. The manual is 300dpi and OCR'd so about 5Mb in size. If anyone want's a copy let me know. Or perhaps Didier would like to host it. Robert G8RPI. _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.