¡°In France, we're limited to 500W, but I wonder how in the USA you can reach 1 kW without exceeding the maximum Eimac values.¡±
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how do you reach 1 KW input or output?
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In France, the power limit is 500W output, or 500W DC input to the final amplifier??
in the US, power was once limited to 1KW DC input to the final amplifier.?
on SSB, that got you about 1200W to 1400W PEP. On CW, ?a class C got you about 750W out. But on AM, a KW input hot you 750W of carrier. At 100% modulation, that would be about 3KW PEP output. You could even get more if you clamp the neg peaks at 95% and it¡¯s possible to hit 175% on your positive peaks for 7x you carrier power, PEP could be up at 5250W PEP out.?
i have never tried it, I was not a ham back in those days when all the big iron stations running the Johnson desktop, invader 2000, BC gates and stuff like a pair of 4-1000 modulated by a pair. But those guys were not happy when the FCC changed the power limits to 1500W output, regardless of mode.?
I have a Viking 2 and a home brew from the design out of QST. My RF deck is from a 1959 QST article, a class C running a pair of 1625s.?
my Modulator is from a 1961 QST article. The speech amplifier is a 12AX7 coupled to a 12J5 and coupled to a driver transformer single plate to push pull grids 1625s in class AB1 into the mod iron.?
