Sorry if this is a dumb question...
When purchasing a step down transformer for say 220VAC to 110VAC is it necessary to calculate the current used in the filaments as well as the high voltage section of the circuit?
It's something I don't really understand about fusing as well for that matter-- why an amp that draws maybe 100mA for the high voltage but almost two amps for the filament supply doesn't blow a fuse of say 650mA on the primary.
Obviously I am missing something about the operation of transformers.
Thanks for helping me out with this one!
When purchasing a step down transformer for say 220VAC to 110VAC is it necessary to calculate the current used in the filaments as well as the high voltage section of the circuit?
It's something I don't really understand about fusing as well for that matter-- why an amp that draws maybe 100mA for the high voltage but almost two amps for the filament supply doesn't blow a fuse of say 650mA on the primary.
Obviously I am missing something about the operation of transformers.
Thanks for helping me out with this one!
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