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 The
Heathkit SB-220, two 3-500Z, amplifier made a notable impact in the world of
amateur radio when it debuted in 1975. It was the first, reasonably priced,
intelligently designed, SSB-CW, HF-amplifier that was sold to the amateur radio
community. Regrettably, the amplifier kit is no longer being manufactured. Over
the ensuing years, the SB-220, which has some excellent design features, has
seen numerous modifications. This page is a collection of
images and links dedicated to those who have made a good product even
better through creativity, resourcefulness and technical expertise.
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