This is in response to Eric, wanting to add an amplifier to his Icom 703+.
Eric, there is a major problem. The Icom 703+ is a qrp rig, with an output
of 5 or 10 watts. The last I heard, amplifiers sold since about 1980 do not
operate at the 5 - 10 watt level. That is because the chicken banders were
using those amplifiers to illegally amplify 11 meter signals.
Most of the amps sold since then require 50 to 100 watts of drive.
So, your options are limited. Some military/commercial amps will drive with
your 5 - 10 watts, but they are rarer than the ham amps and will require
understand them. Ten-Tec sold a small amp that operated on their argonaut,
to boost the signal to 50 watts. But, they are quite rare.
The Central Electronics 600L would work ok - but they are not common.
Although this forum is about amplifiers, much of the discussion is bent
toward the other end of the power spectrum. For this group, 100 - 200 watts
is qrp.
At the power level , you may be better off building a 5 - 100 watt solid
state amplifier - but you will have to learn about solid state circuits and
building.
73, Colin K7FM
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