I would like to power a wire coil to produce EM fields at audio frerquencies for equipment testing. I am looking for advice on the setup as proposed in my diagram attached below. The purpose of the transformer is to remove the DC component to produce a monopolar emitted field.
Of particular interest is a recommended value for the ceramic resistors and use of transformer taps since I do not want to overload the amp.
At the moment, I am "playing it safe" by using the standard 600 Ohms, and lowest transformer turns ratio, but I do not want to unnecessarily limit the coil's field intensity. Can someone suggest an accurate method for optimising this part of the design?
Any general advice on using this type of amp to similarly drive resistive end loads would also be greatly appreciated.
Of particular interest is a recommended value for the ceramic resistors and use of transformer taps since I do not want to overload the amp.
At the moment, I am "playing it safe" by using the standard 600 Ohms, and lowest transformer turns ratio, but I do not want to unnecessarily limit the coil's field intensity. Can someone suggest an accurate method for optimising this part of the design?
Any general advice on using this type of amp to similarly drive resistive end loads would also be greatly appreciated.
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