[Amps] Active Antenna Tuners

Pete Smith n4zr at contesting.com
Mon Nov 17 08:54:31 EST 2008


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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