I third the motion. You can actually calculate the needed capacity in any
particular circuit, whether it be bypassing or coupling. The chance that
any particular .05ufd capacitor originally used by the reeceiver
manufacturer would be the calculated value is about as as slim as finding a
nice SX-88 at a landfill. Ballpark is close enough, unless it is in a tuned
circuit.

And, the capacitors usually have a tolerance far greater than the .03 ufd
difference.

Use the .047 and do not give it another thought.

73, Colin K7FM