[Amps] 4CX250 IMD

[Steve Thompson]

Tom Rauch wrote:
> Peter wrote:
> That´s the efficiency I always wanted to obtain!>>
> 
> Someone else wrote:
> Input power is 500WDC, Output is 470W PEP, not key down CW. 
>  >>
> 
> DC input power is power indicated on plate voltage and 
> current meters. It is an average power. it would indicate 
> the sum of the two tones in respect to input power.
> 
> RF output power is PEP, which would be four times the single 
> tone or two times the average power in a two-tone test.
> 
> So we have:
> 
>  1000W PEP input, and 470W PEP output. 47% efficiency
> 
> or we could view it:
> 
> 500W average input and 235W average output 47% efficiency
> 
> Technology to build a very good PEP meter was available as 
> soon as man invented and learned how to work with the 
> capacitor, diode, resistor, and meter. My assumption is most 
> people working in electronics knew all four important things 
> long before 1960.
I was surprised to learn that the silicon point contact diode was 
patented in 1906.

Steve