[R-390] Re: R-390 Resistor Tolerances

[Drew Papanek]

Hello All,

An observation about the effect of resistor tolerances in the R-390 series:  
The value of many resistors in the IF deck could vary over a wide range with 
little practical effect.  Screen and cathode resistor variation would have 
an effect on gain but remember that the potential IF gain is much higher 
than necessary or desireable.

When all is said and done, we simply adjust the IF Gain control far below 
maximum thereby obtaining best noise figure.

Drew




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