Motorola ts907 low hv

[Electronic M]

Look in the parts list in Sam's and see if there's temperature constants listed for the original caps. When permanently replacing caps in tuned circuits especially original ceramic in the IF you want to use the same temperature coefficient. Sometimes a coil changes inductance a meaningful amount when it heats up and a cap is chosen with a temperature coefficient such that the cap changes value in step with the coil such that the tuned frequency of the pair remains constant despite the R and C values shifting with temperature.
Temp codes are typically 2 letters and a number like C0G, NP0 which are no change temp constants.