FLUKE 803B

5/24/2004 12:19:59 PMAlex

Picking up three of these beauties this saturday.
These are the models which use a 'standard cell' as the reference element, as opposed to the 803B/AG which uses a zener as reference.
I will be trying to convert these units to B/AG specs.
The manual lists the zener reference diode as CR301, but other than that there are no specifications on it.
Could anyone tell me what this zener is or a possible replacement for it?
I also need a value for R3 (top of CR301 - selected
at factory) and R319 (next to R318 3K pot) so I can use these as a starting point.
If I can't find information on these parts these units will probably sit in my garage collecting dust, but I would much rather prefer to get them back to life.
Thanks.

5/24/2004 12:32:15 PMAlex

Just thought I'd clarify:
Zener 'CR301' is just the reference designation, not a part number.
The Fluke 803B is 1962 vintage with tubes.
Not sure if this forum is Radio only, if so, my apologies.

:Picking up three of these beauties this saturday.
:These are the models which use a 'standard cell' as the reference element, as opposed to the 803B/AG which uses a zener as reference.
:I will be trying to convert these units to B/AG specs.
:The manual lists the zener reference diode as CR301, but other than that there are no specifications on it.
:Could anyone tell me what this zener is or a possible replacement for it?
:I also need a value for R3 (top of CR301 - selected
:at factory) and R319 (next to R318 3K pot) so I can use these as a starting point.
:If I can't find information on these parts these units will probably sit in my garage collecting dust, but I would much rather prefer to get them back to life.
:Thanks.

5/24/2004 2:59:30 PMLarry

Hi Alex,

PDF Manual for AC/DC Differential Voltmeter
Model 803B
at

http://bama.edebris.com/manuals/fluke/803b

Good Luck,
Larry

:Just thought I'd clarify:
:Zener 'CR301' is just the reference designation, not a part number.
:The Fluke 803B is 1962 vintage with tubes.
:Not sure if this forum is Radio only, if so, my apologies.
:
::Picking up three of these beauties this saturday.
::These are the models which use a 'standard cell' as the reference element, as opposed to the 803B/AG which uses a zener as reference.
::I will be trying to convert these units to B/AG specs.
::The manual lists the zener reference diode as CR301, but other than that there are no specifications on it.
::Could anyone tell me what this zener is or a possible replacement for it?
::I also need a value for R3 (top of CR301 - selected
::at factory) and R319 (next to R318 3K pot) so I can use these as a starting point.
::If I can't find information on these parts these units will probably sit in my garage collecting dust, but I would much rather prefer to get them back to life.
::Thanks.

5/24/2004 3:21:27 PMAnonymous

:Hi Alex,
:
Sorry, Call Fluke !

:PDF Manual for AC/DC Differential Voltmeter
:Model 803B
:at
:
:http://bama.edebris.com/manuals/fluke/803b
:
:Good Luck,
:Larry
:
::Just thought I'd clarify:
::Zener 'CR301' is just the reference designation, not a part number.
::The Fluke 803B is 1962 vintage with tubes.
::Not sure if this forum is Radio only, if so, my apologies.
::
:::Picking up three of these beauties this saturday.
:::These are the models which use a 'standard cell' as the reference element, as opposed to the 803B/AG which uses a zener as reference.
:::I will be trying to convert these units to B/AG specs.
:::The manual lists the zener reference diode as CR301, but other than that there are no specifications on it.
:::Could anyone tell me what this zener is or a possible replacement for it?
:::I also need a value for R3 (top of CR301 - selected
:::at factory) and R319 (next to R318 3K pot) so I can use these as a starting point.
:::If I can't find information on these parts these units will probably sit in my garage collecting dust, but I would much rather prefer to get them back to life.
:::Thanks.

5/24/2004 3:24:29 PMLarry

:Hi Alex,
:
Sorry, Call Fluke.

:PDF Manual for AC/DC Differential Voltmeter
:Model 803B
:at
:
:http://bama.edebris.com/manuals/fluke/803b
:
:Good Luck,
:Larry
:
::Just thought I'd clarify:
::Zener 'CR301' is just the reference designation, not a part number.
::The Fluke 803B is 1962 vintage with tubes.
::Not sure if this forum is Radio only, if so, my apologies.
::
:::Picking up three of these beauties this saturday.
:::These are the models which use a 'standard cell' as the reference element, as opposed to the 803B/AG which uses a zener as reference.
:::I will be trying to convert these units to B/AG specs.
:::The manual lists the zener reference diode as CR301, but other than that there are no specifications on it.
:::Could anyone tell me what this zener is or a possible replacement for it?
:::I also need a value for R3 (top of CR301 - selected
:::at factory) and R319 (next to R318 3K pot) so I can use these as a starting point.
:::If I can't find information on these parts these units will probably sit in my garage collecting dust, but I would much rather prefer to get them back to life.
:::Thanks.

5/30/2004 12:55:59 PMAlex

Thanks for that Larry, really appreciate it! :)

::Hi Alex,
::
:Sorry, Call Fluke.
:
::PDF Manual for AC/DC Differential Voltmeter
::Model 803B
::at
::
::http://bama.edebris.com/manuals/fluke/803b
::
::Good Luck,
::Larry
::
:::Just thought I'd clarify:
:::Zener 'CR301' is just the reference designation, not a part number.
:::The Fluke 803B is 1962 vintage with tubes.
:::Not sure if this forum is Radio only, if so, my apologies.
:::
::::Picking up three of these beauties this saturday.
::::These are the models which use a 'standard cell' as the reference element, as opposed to the 803B/AG which uses a zener as reference.
::::I will be trying to convert these units to B/AG specs.
::::The manual lists the zener reference diode as CR301, but other than that there are no specifications on it.
::::Could anyone tell me what this zener is or a possible replacement for it?
::::I also need a value for R3 (top of CR301 - selected
::::at factory) and R319 (next to R318 3K pot) so I can use these as a starting point.
::::If I can't find information on these parts these units will probably sit in my garage collecting dust, but I would much rather prefer to get them back to life.
::::Thanks.