[450] ldmos

[David McKenzie]

http://www.nxp.com/documents/data_sheet/BLF188XR_BLF188XRS.pdf

HF-600MHz, 1400 watts, $200 each. There are some boards on ebay that
support these i think in various frequency ranges. Could build an elaborate
switching and filter network and have a single HF-70cm kilowatt.

7.1 Ruggedness in class-AB operation
The BLF188XR and BLF188XRS are capable of withstanding a load mismatch
corresponding to VSWR > 65 : 1 through all phases under the following
conditions:
V=50V; I
Dq=40mA; P
L= 1400 W pulsed; f = 108 MHz
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