[R-390] RF deck alignment

[Raymond Cote]

"During times of universal deceit, telling the truth becomes a revolutionary act." George Orwell
Isn't there a procedure for that already?  I seem to remember something about replacing slugs and tweaking the stages. Perhaps it was something in my Navy R-300a trouble shooting school. 
But that was in 1965. Memory cells are also 50 years and dwindling down. 

  
I know that this generally falls under the "leave it alone" category but
has anyone ever gone through the process of aligning the RF deck stages and
bands for linearity?

Generally I know that we pick a few spots on each band and peak through the
RF stages for performance but what happens when a slug has been replaced,
repaired or the spring was accidentally stretched? That one slug will have
a different peak than the other in the string when the band selector switch
is lined up that way.

The only way I could think to do it would be to inject a known RF signal
level and to use a RF microvoltmeter (like a Boonton 92) at test points to
walk through the stages.

Am I wrong-headed to think that the more selective the RF stages are the
better the desired response would be at the IF?

Ideas?

-- 
Ms. Tisha Hayes/ AA4HA

"Objective considerations of contemporary phenomena compel the conclusion
that success or failure in competitive activities exhibits no tendency to
be commensurate with innate capacity, but that a considerable element of
the unpredictable must invariably be taken into account." -- George Orwell
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