[Hallicrafters] SX-100 Mark 1

[joe]

The SX-100 that I plan to restore appears to have some sort of modification between Pin 3 T-6 and the Det section of V-7 as well as coupling to the BFO.  Almost looks like someone tried to conjure up a product detector circuit of some sort.  There are several diodes and extra tubular caps in this area that do not follow, or even appear, in the schematic.  Was there ever an article for a mod in this area and does anyone have any ideas what they might be.  Thanks Joe k7mks

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