Collins 75S-3B S-Line Receiver

Collins "S" Line 75S-3 Receiver had sharp selectivity and exceptional sensitivity because of its advanced circuitry.  The Collins mechanical Filter achieved selectivity unsurpassed in radio technology,  Tuning range was from 3.4Mhz to 29.7Mhz in 200Khz ranges, and came with a built-in AC power supply and weighted 20 lbs.   Over the 75S-1 series receiver the 75S-3 series included new features, "Rejection Tuning" notch filter, selectable AGC settings and a variable BFO as well as the fixed settings.

The "B" version of the 75S-3 series receiver included the additions of plug-in filters, a second CW filter selection on the Mode Switch, relocated fuse holder to the rear panel and noticeable increased performance.

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