In Reply to: Something I don't Understand... posted by Lee of Omaha on November 11, 2014 at 15:13:18:
Chip's link covers it well.
I like to think of it this way,
Do you want a little music on your heater or a little heater (hum) on your cathode (music)?
With the heater positive WRT the cathode the cathode will conduct to the heater.
With the cathode positive WRT the heater the heater will conduct to the cathode.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
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- RE: Something I don't Understand... - Tre' 18:27:41 11/11/14 (0)