[Test-Equipment] HP-606A Calibration question

[Barry]

> My experience has been different than Carls. While the 
> dials don't loosen up they are sometimes mis-set by careless 
> repair people.
> The frequency calibration should come in to no worse 
> than half the spec, it is very good all over. The error is 
> determined by the characteristics of the tuning caps, they 
> are pretty accurate although I have some vague memory that 
> there were some bad ones. I have no idea of how the stators 
> on my generator got tilted, it would have taken a lot of 
> force, enough to damage a lot of other stuff and there was 
> no sign of that. Whoever bent the plates evidently didn't 
> realize that the stators were off or didn't know how to fix 
> that.
> You should be able to get the calibration right on the 
> nose on one of the low bands and have it correct on all 
> bands once the L and C are done. Again, once the shield 
> cover is replaced the high end will need to be touched up. 
> Evidently the amount of disturbance to the amplifer is 
> little enough so it doesn't need touching up.
> The dial slipping procedure is not in the manual, I 
> learned it at -hp-, it works. BTW, if you ever run across a 
> 608C/D they can also be brought exactly on the money. Both 
> generators were designed by Art Fong who was one of the 
> great designers at -hp- in the old days.
> You are unblocked from my e-mail..
> 
> --
> Richard Knoppow

Something occurred to me about all of this.  Is it possible there is a proper starting position for the trimmer so as to effect the 
final position of the slug?  In other words, there might be almost any number of combinations of L and C that would cause the endpoints 
to be on target, but certain combinations cause the accuracy across the entire dial to be further off than others?

Barry - N4BUQ