[Yaesu] FT-817

[Dave Henderson]

John

Most any of the inexpensive 500W to KW class tube amps will produce about=20
50 to 150 watts out with 5 watts of drive.

Also building a single band solid state amp at this frequency can be done=20
fairly cheaply using inexpensive power FET's which are otherwise designed=20
for DC switching applications. There have been  number of articles on these=
=20
in the past. I saw one somewhere that used hi voltage FETS and was powered=
=20
directly from the 110 VAC outlet using no power transformer,  just a simple=
=20
half-wave rectifier and a bodacious power supply filter.

Simple home brew single band amps using grid drive and sweep tubes and junk=
=20
box parts from old TV sets are easily capable of giving you 500 watts out=20
as well.

In either of the above cases the headaches and cost go up when you try to=20
design band switching in, single band amps are really simple and cheap to=20
homebrew.

Dave
NR1DX

At 11:00 AM 4/6/02 -0600, John E. wrote:
>I am starting to think about a FT-817, The FT-817 will have two
>functions
>one will be a good camping radio. The other function will be my work
>shop
>radio. I do check into a 75m net in the after noon, The 5 w of the
>FT-817 will not have enough zip for that net.
>  Here is the question - With the 5 w out is any known tube type
>amplifier that will be ok with the low drive of 5 w?
>
>Thanks de John K=D8CQW
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