Ron, I discussed these mixers with a Mini-Circuits engineer and he
recommended the SRA-3MH+ over the SBL-1MH+ mainly because the
SRA-3MH+ has almost 1 db less conversion loss.
73, Joe, KC9LAD
Charles, The Mini-Circuits part number SBL-1MH+ is a direct
replacement to the CM1 in the Drake TR7. I have replaced several
of those double balanced mixer modules and that one works perfectly.
Ron / WB4HFN
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