[Hallicrafters] Best Rx?

[James Liles]

The SX-100 Mark2 was a significant improvement over the Mark1.  The tuning cap linkage was re-designed to reduce backlash and mechanical stability and there were several circuit changes that enabled the radio behave and sound as good as any with a product detector.  You run with the RF gain at 10 in SSB mode and it's quite a bit less bothered by vibration.  There is a post on the HHI reflector describing the changes.  BTW, with the exception of the re-designed tuning cap the Mark1 can be converted to a Mark2 in a couple of hours -- making it a good sideband receiver which I believe to be as sensitive as any out there on all bands.  

Kindest regards Jim K9AXN