Mullard EZ81 6CA4 Rectifier Tube – TESTS NOS. Here are the desired target numbers for a EZ81 / 6CA4 All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE, EMISSION and NOISE (large tube lots are not tested for noise).
Mullard EZ81 6CA4 Rectifier Tube – TESTS NOS. Here are the desired target numbers for a EZ81 / 6CA4 All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE, EMISSION and NOISE (large tube lots are not tested for noise).