David wrote:
When running through the calibration of the unit last night, I found that it
was really quite noisy
>
So, is it worthwhile to replace the chopper amplifier board and replace
electrolytic caps or would that just make marginal improvements
If it would still be an unstable, noisy brute after I finished that, then I
think I'll put it on eBay ...
My experience with these extends back to when they were new. They are
definitely noisy even when they are in perfect condition, and this many
years on they tend to be quite unreliable even if they have been
thoroughly gone through. Also, something I haven't seen mentioned much
is that the last decade (LSD) is purely for decoration. The accuracy of
the 332 on its best day is worse than one division of the second-last
decade.
In my expeience, the original choppers work very well unless they are
broken. I do not expect that a chopper-stabilized op amp would provide
meaningful improvement.
I advise passing on the 332A/B/D and holding out for a 5440B. You will
not be sorry.
Best regards,
Charles
_______________________________________________
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.
