[R-390] Mica capacitors and tempco

[Perry Sandeen]

Yo Bubba Dudes!
All the previous posts about capacitor tempco was most interesting but is irrelevant for our B/A receivers.
Here's why.  We generally operate our receivers in a comfortable environment of say, 70 to 78 degrees F.   Although some might operate in a somewhat cooler basement its temperature will remain fairly constant.   As the receiver warms up it will eventually reach some stable elevated temperature.
This elevated temperature will be where we do our alignment. Although this final temperature may be a few degrees more or less from set to set or location to location there will not be any practical variance requiring some tempco value.  We just align to spec and call it good.
Regards,
Perrier