[Elecraft] Yet another product idea

[Ray Sills]

The spec sheet seemed to indicate the devices can be biased for  
linear operation.  But with over 20dB gain, the devices would have to  
be reined in a bit for USA use.  Looks like a pretty rugged device:

"Capable of Handling a Load Mismatch of 65:1 VSWR, @ 50 Vdc, 230 MHz,  
at all Phase Angles, Designed for Enhanced Ruggedness, 1250 Watts  
Pulsed Peak Power, 20% Duty Cycle, 100 µsec
Capable of 1250 Watts CW Operation
Unmatched Input and Output Allowing Wide Frequency Range Utilization
Device can be used Single-Ended or in a Push-Pull Configuration
Qualified Up to a Maximum of 50 VDD Operation
Characterized from 30 V to 50 V for Extended Power Range
Suitable for Linear Application with Appropriate Biasing
Integrated ESD Protection with Greater Negative Gate-Source Voltage  
Range for Improved Class C Operation
Characterized with Series Equivalent Large-Signal Impedance Parameters
RoHS Compliant."

... according to the Freescale Semiconductor web page.

But then, I'm a QRP 5W guy.. so I won't be buying any amps.  :)

73 de Ray
K2ULR


On Apr 10, 2011, at 12:31 PM, Joe Subich, W4TV wrote:

>
> Nice for pulsed or CW devices.  How about specs for AB1 service
> including standing current and IMD?  Standing current (bias) is
> critical for heat sink/cooling design.  IMD capability is crucial
> to how "clean" the amplifier will be.
>
> Other than those "minor" considerations, a pair of 900W amplifiers
> in push-pull (broadband 180 degree splitter and combiner) would
> be very nice.
>
> 73,
>
>     ... Joe, W4TV
>
>
> On 4/10/2011 12:13 PM, Toby Deinhardt wrote:
>>>>  Not quite what the KPA-1500 promised -- the HL-2.5KFX does
>>>>  not support SO2R or six meters.
>>
>> <dream>
>>
>> Two of these, MRFE6VP61K25H, should do the trick...
>>
>> </dream>
>>
>> vy 73 de toby, DD5FZ
>>
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