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Keithley 197A owners' corner

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alx2009:
Inspired by this thread, I have developed my own display replacement board and SW to go with it. In addition to replacing the display, I have added bluetooth logging and other functionality. Here is a picture of how it looks like:



The SW (targeting a AVR64DB28 micro) is available on GitHub: https://github.com/alx2009/K197Display

For more details please see this thread: https://www.eevblog.com/forum/projects/replacement-display-board-for-keithley-197a/msg4232665/#msg4232665

alx2009:
I have now reversed engineered the way the voltmeter talk to the IEEE-488 card: https://www.eevblog.com/forum/projects/reverse-engineering-of-the-internal-ieee-interface-of-the-keithley-197a/msg5202936/#msg5202936

Many thanks to rikkitikkitavi who very kindly loaned me a Model 1972 IEEE-488 interface card, making this possible.

A library for an Arduino Uno is available here: https://github.com/alx2009/K197Control

mk_:

--- Quote from: alx2009 on December 03, 2023, 10:55:26 pm ---I have now reversed engineered the way the voltmeter talk to the IEEE-488 card: https://www.eevblog.com/forum/projects/reverse-engineering-of-the-internal-ieee-interface-of-the-keithley-197a/msg5202936/#msg5202936


--- End quote ---

I found the printed Instruction manual for the "Model 1973/1973 IEEE-488" for the Keithley 197", including schematics. Now lying here on my desk.
No time for scanning at the moment, will do it in the winterholidays and post it here.
 If I should look into something detailed send a PM

mk_

lowimpedance:
For documentation completeness I have attached the scans of the 197A version...... and of course there is only the addition of the backlight circuits to the original, but still.. :P
In two parts to fit forum limitations!

Would be nice if mk has the GPIB scans done to post them too  :)

 
--- Quote from: mk_ on December 06, 2023, 02:36:41 pm ---I found the printed Instruction manual for the "Model 1973/1973 IEEE-488" for the Keithley 197", including schematics. Now lying here on my desk.
No time for scanning at the moment, will do it in the winterholidays and post it here.
 If I should look into something detailed send a PM

mk_

--- End quote ---

lowimpedance:
Part 2 K197A schematics.

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