[Test-Equipment] HP-606A Calibration question

[Barry]

>I was just looking into this again and I notice that there are two 
>independent slugs for the 530kc to 1800kc range (and other ranges too).  I 
>had not noticed this before.  The manual makes no mention of separate 
>adjustments.  What's the proper way to set both slugs?  Is it possible this 
>is what is causing the linearity problem (one or both slugs is not in a 
>correct position)?
>
> Barry - N4BUQ

Well, it looks like I was wrong about the tuning capacitor.  Apparently I 
had not looked very closely.  There are several bent fins on the oscillator 
side.  Not sure if it came from the factory this way or not and also not 
sure if I need to straighten it and go from there or leave it as is.  Very 
disappointing to find this.  I really need to learn to look closer before I 
say something like that...

Barry - N4BUQ