Quote:
Originally Posted by ZackN920
Thanks guy's for the info about the diodes. I didn't realize that when used as rectifiers that ya essentially swap there polarities. ...
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It may be easier to visualize when you compare the diode to a vacuum tube rectifier. The end of the diode with the band is the cathode, the other end is the "plate". The cathode of the vacuum tube rectifier is the side that B+ comes from. As seen from the AC source, the power transformer secondary, there are two cathodes in series. One of those cathodes is the rectifier, the other is one or more cathodes of the various tubes doing the audio amps, IF amps, vertical or horiz outputs, and such.
Confusingly, some selenium rectifiers had "+" symbols next to their cathodes. As if to say "Connect this side to your B+ filter caps".