[Amps] re filaments & regulation

[Rick Cole VK3YM]

John   W0UN wrote:
A rheostat in the primary of the filament/heater transformer is a 
convenient way to adjust filament/heater V.

when you are talking about a rheostat are you describing the small wirewound type variable resistor..similar looking to a mini-mini variac...or are you talking about a high wattage variable resistor.
Just curious as some people call them by either name and if I am never sure I ask!
       regards  Rick




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