Every phone contest, I am surprised by how well my SB-220 handles low-band
antennas cut for CW, even relatively high in the SSB portions. Even with
SWRs reading well over 3:1, it matches for maximum output with no complaints.
Is this a known and particular strength of the SB-220 output circuit, or
are other tube amps similarly forgiving? If so, which ones? Not having to
change antennas for SSB - priceless!
73, Pete N4ZR
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