[Collins] 75S3......odd discovery in s merer circuit

[w9hak]

I have owned this receiver for about a year now. I've completed the, 
"Dennis Brothers", recommended modifications and touched up the 
alignment. Works great.

I did find a non Collins resistor, (27 ohm), from the positive side of 
the s meter to ground. Apparently someone in the past history of the 
receiver installed this resistor. I am guessing they  were dealing with 
an s meter reading issue. The resistor would lower the  plus voltage at 
the positive terminal of the meter. This  lower plus volts would cause 
the meter go towards zero. Additionally, it would lower any s meter 
reading with a given input microvolt setting.

Just wondering if this is a systemic issue with the s meter, or another 
case of original component values changing? And then treating the 
symptom instead of effecting a repair.

Smith Bradford
W9HAK