Only if you have a fixed bias amp, if you have a cathode bias amp then the tubes will be self-biasing and no bias controls or check points will be present on the amp.
If the amp has bias controls and there are individual controls for each tube, matched pairs of tubes, while desireable, are not necessary. If the amp has one bias pot per pair of tubes then each pair must be matched to prevent current hogging by one of the tubes, leading to premature failure and asymmetry of the waveform.
If the amp has bias controls and there are individual controls for each tube, matched pairs of tubes, while desireable, are not necessary. If the amp has one bias pot per pair of tubes then each pair must be matched to prevent current hogging by one of the tubes, leading to premature failure and asymmetry of the waveform.