>
>Please excuse the dumb question... I'm trying to figure out how to
>determine the power handling capability of transformers (I did take a
>quick look through the ARRL Handbook last night)...
>
>Questions:
>
>How can you determine the power handling capability of a transformer???
>
? primarily by measuring the resistance of the secondary winding.
Look in "Amplifiers" on my Web site for some rule of thumb formulas.
>For example, the secondary on the transformer in my Heath SB-201 is
>rated at 800 VAC at 0.5 amps... I would think this transformer would
>only be good for about 400 watts of power (800 x 0.5) but it seems that
>if you feed this secondary into a full-wave bridge rectifier and
>capacitors you would get about 1,000 volts and 0.5 amps under load (500
>watts), or feed it into a voltage doubler circuit, like that in the
>SB-201, and you get about 2,000 vdc at 0.5 amps under load (1,000
>watts)...
>
>I'm confused... What am I missing???
? Duty-cycle considerations. For SSB, a 600W-CCS rated transformer will
make c. 1500w pep RF-output.
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