[AMRadio] Power Levels

Jeff Edmonson w5omr at w5omr.shacknet.nu
Mon Jun 24 20:42:26 EDT 2002


:     I guarantee you that those running T-368s and BC-610s that are properly
: tuned ARE running illegal.  Then there are those that goes steps farther.
: There are a few that run in the neighborhood of 10KW output, and some that
: are running just a few KW.

How do you figure?

At 2kVDC on the plate of the 250TH, drawing 250mA of Current equals (last time I
checked Ohm's Law of P=I*E) 500WDC Input power.

Efficiency of a Class C amplifier is *typically* 75%, right?

75% of 500 = 375W of Output Carrier power.

375 * 4 = (drum roll, please?) 1500W PEP Output.

Now, the kicker is...

The BC-610 E model (at least mine) is only normally loaded up to somewhere
between
175 and 200mA, making a maximum of 400wDC Input.
Lower Ip at the same Vp = less power.

73 = Best Regards,
-=Jeff/W5OMR=-




More information about the AMRadio mailing list