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Discussion of precise voltage measurement

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Cropico ESC1 versus Tinsley 5646A

DC
David C. Partridge
Sat, Dec 15, 2012 2:02 AM

Both offered by the same vendor who is selling the Guildline standard cell set.

Both solid state voltage references.  He's priced the Cropico Electronic Standard Cell higher than the Tinsley Voltage Standard.

Does anyone have guidance as to their quality and relative merits?
Thanks
Dave

Both offered by the same vendor who is selling the Guildline standard cell set. Both solid state voltage references. He's priced the Cropico Electronic Standard Cell higher than the Tinsley Voltage Standard. Does anyone have guidance as to their quality and relative merits? Thanks Dave
MK
m k
Sat, Dec 15, 2012 7:54 AM

The Cropice only has 1.00000 and 1.018etc volt outputs, so only of use as a transfer from stan dard cells.

From: david.partridge@perdrix.co.uk
To: volt-nuts@febo.com
Date: Sat, 15 Dec 2012 02:02:18 +0000
Subject: [volt-nuts] Cropico ESC1 versus Tinsley 5646A

Both offered by the same vendor who is selling the Guildline standard cell set.

Both solid state voltage references.  He's priced the Cropico Electronic Standard Cell higher than the Tinsley Voltage Standard.

Does anyone have guidance as to their quality and relative merits?
Thanks
Dave


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The Cropice only has 1.00000 and 1.018etc volt outputs, so only of use as a transfer from stan dard cells. > From: david.partridge@perdrix.co.uk > To: volt-nuts@febo.com > Date: Sat, 15 Dec 2012 02:02:18 +0000 > Subject: [volt-nuts] Cropico ESC1 versus Tinsley 5646A > > Both offered by the same vendor who is selling the Guildline standard cell set. > > Both solid state voltage references. He's priced the Cropico Electronic Standard Cell higher than the Tinsley Voltage Standard. > > Does anyone have guidance as to their quality and relative merits? > Thanks > Dave > > > _______________________________________________ > 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.
W
Will
Sat, Dec 15, 2012 2:21 PM

The Tinsley 5646 was designed in the late 70s based on LM399 reference
IC. You can expect long term stability similar to a 34401A multimeter.

The right side circuit is normally off and switched on only for
calibrating the left side output which is continously powered. That
reduces the drift a little but introduces a hysteresis problem. No
free lunch...

2012/12/15, David C. Partridge david.partridge@perdrix.co.uk:

Both offered by the same vendor who is selling the Guildline standard cell
set.

Both solid state voltage references.  He's priced the Cropico Electronic
Standard Cell higher than the Tinsley Voltage Standard.

Does anyone have guidance as to their quality and relative merits?
Thanks
Dave


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To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the instructions there.

The Tinsley 5646 was designed in the late 70s based on LM399 reference IC. You can expect long term stability similar to a 34401A multimeter. The right side circuit is normally off and switched on only for calibrating the left side output which is continously powered. That reduces the drift a little but introduces a hysteresis problem. No free lunch... 2012/12/15, David C. Partridge <david.partridge@perdrix.co.uk>: > Both offered by the same vendor who is selling the Guildline standard cell > set. > > Both solid state voltage references. He's priced the Cropico Electronic > Standard Cell higher than the Tinsley Voltage Standard. > > Does anyone have guidance as to their quality and relative merits? > Thanks > Dave > > > _______________________________________________ > 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. >