Luciano, Hi I understand your A9 is the older version like the one in my post but with the original opamp module.
I tested the 5065A with an unmodified and then one with the LH156H mounted and the 24 Hour phase plots were both clean and the AD were the same. My lab is not climate controlled so it was a good environment to do the test. There would be no advantage to install the LH156H unless the original opamp fails. Cheers, Corby _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
