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Originally Posted by unregistered
power resistors complicate the secondary loss control
use heater cartridges on DC
a 450W AC cartridge will need ~70VDC @ 3 or 4 A
using AC will not permit the precision you want
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That's why I wanted to use DC in the first place.
This new bench is going to take some time to gather up. Money is not falling off trees right now. First thing I am going to pick up is a dP transmitter and use it in my current bench.