Phil,
Phil,
A current balun *is* a choke, not a transformer. That is true for both
the 1:1 and 4:1 baluns. OTOH, a voltage balun is a transformer, but I
am not sure why anyone would want to use one except for special
applications.
73,
Don W3FPR
Phil & Debbie Salas wrote:
The figure referred to is using the material as part of an RFI
suppression choke where you want attenuation at RF frequencies. I think
you'll find that when the Type 61 material is used as a transformer, it
will have very low loss if designed properly. See Sevick's book on
baluns and ununs. But I think that even a well-designed transformer
will have maybe 1-2% loss. At 100 watts, that is 1-2 watts which will
cause the transformer to heat up. Just dissipate 1-watt in a resistor
with your DC power supply and feel the heat.
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