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How about when Browning and Courier marketed their line of "commercial two-way radio amps" for low band 30 to 50 MHz. use (CB with the tank coil modified)? I was always waiting to see one turn up behind a Motorola at some local fire or police department back in the day but it never happened. The funny thing is they all had bias even though they were supposedly intended for FM use while today's CB amps all have SSB switches with very few having bias. What's up with that?