When installing an universal ouput transformer (a common tap and three pins for varying ratios for speaker resistance), on the speaker side, which pin should go to the hum-bucking coil and which should go to the voice coil?
I know that new speakers demonstrate polarity, was this the case on the old electrodynamics as well or won't it make much of a difference? I've done the calculations and know that common/pin2 is correct for impedance matching. I can't seem to hear any difference in sound quality if either pin2 or common is used at the hum-bucking side.

Justin

Hi Justin, The hum bucking coil is placed in series with the voice coil and speaker transformer. Wire it for least hum if you can notice any difference, otherwise it doesn't matter. Don Black.

: When installing an universal ouput transformer (a common tap and three pins for varying ratios for speaker resistance), on the speaker side, which pin should go to the hum-bucking coil and which should go to the voice coil?
: I know that new speakers demonstrate polarity, was this the case on the old electrodynamics as well or won't it make much of a difference? I've done the calculations and know that common/pin2 is correct for impedance matching. I can't seem to hear any difference in sound quality if either pin2 or common is used at the hum-bucking side.

: Justin