Richard haendel wrote:
For those who don't want to wait for the Elecraft linear amplifiers, here
is an option that I pursued. I bought a Tokyo Hi-power amplifier the HL
1.2KFS that is rated at 750 watts output with typically 60 watts drive. But
here is what I did, I asked Nobuki San, the chief engineer, to set up the
amplifier to work with the K2 at 10 watts drive. He did this and now I get
an easy 600 watts output. The amp uses 4 SD2933 power FET transistors. Since
the transistor gain at 30 MHz is typically 23 dB, I knew that my little K2
could drive the amplifier nicely.
Unfortunately, he can't legally sell such a model in the US. There's an
FCC rule that the gain of an amateur service amplifier can't exceed 16
dB. Of course, it is permissible for a licensed amateur to modify a
commercial amplifier for his own use, as long as it meets
purity/stability standards.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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