Heathkit SB-220
The Heathkit SB-220 is a legendary, high-performance HF linear amplifier from the 1970s, designed for 2kW PEP SSB/1kW CW input, utilizing two 3-500Z triode tubes in a grounded-grid configuration. It typically covers 80-10 meters (often modified for 160m), runs on 110v, and is renowned for its durability, “load and go” tuning, and classic styling that matches the SB-line
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