So, I gather, tubes aside... that there is a higher probability that the old carbon core resistors could be out of tolerance than the ceramic disc caps, ( not that it can't be both :/ ) Which kinda makes sense, I had my Sansui 9090 go from working to non-working sitting in the same shed as the CTC, for a few years and had to replace several resistors on it to get it to come back up.
edit---
good thing to note, as I was poking around for info, I should stick with Carbon Composition Resistors if i do replace any, ( in the IF )
"Film Resistors-their frequency response is much worse due to the inductance and capacitance caused by the resistive path cut into the film."
