>With the SB-220 there's too much crammed into the small box.
And compare the bandswitch in an SB-220 with the L4B and you will see the
difference. I swear the bandswitch in an R4A receiver is as heavy as an
SB-220 ! And when you mistune the SB-220 and fry the bandswitch, first of
all you will tear the amp apart getting it out, and then find out a
replacement is not available. Just ask Lou, W1QJ, how many bad bandswitches
he has seen from SB-22os.
For an interesting way to spend 10 minutes and see what I mean about
bandswitches go to the QRO amplifier site where there are some great photos
of his amps, and look at what a real ceramic, RF rated bandswitch is all
about.
Rick K2XT
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